1
|
Palekar CC, Rosa B, Heermeier N, Shih CW, Limame I, Koulas-Simos A, Rahimi-Iman A, Reitzenstein S. Enhancement of Interlayer Exciton Emission in a TMDC Heterostructure via a Multi-Resonant Chirped Microresonator Upto Room Temperature. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2402624. [PMID: 39007260 DOI: 10.1002/adma.202402624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 07/02/2024] [Indexed: 07/16/2024]
Abstract
We report on multi-resonance chirped distributed Bragg reflector (DBR) microcavities. These systems are employed to investigate the light-mater interaction with both intra- and inter-layer excitons of transition metal dichalcogenide (TMDC) bilayer heterostructures. The chirped DBRs consisting of SiO2 and Si3N4 layers of gradually varying thickness exhibit a broad stopband with a width exceeding 600 nm. Importantly, the structures provide multiple resonances across a broad spectral range, which can be matched to resonances of the embedded TMDC heterostructures. Studying cavity-coupled emission of both intra- and inter-layer excitons from an integrated WSe2/MoSe2 heterostructure in a chirped microcavity system, an enhanced interlayer exciton emission with a Purcell factor of 6.67 ± 1.02 at 4 K is observed. The cavity-enhanced emission of the interlayer exciton is used to investigate its temperature-dependent luminescence lifetime of 60 ps at room temperature. The cavity system modestly suppresses intralayer exciton emission by intentional detuning, thereby promoting a higher IX population and enhancing cavity-coupled interlayer exciton emission. This approach provides an intriguing platform for future studies of energetically distant and confined excitons in different semiconducting materials, which paves the way for various applications such as microlasers and single-photon sources by enabling precise emission control and utilizing multimode resonance light-matter interaction.
Collapse
Affiliation(s)
- Chirag C Palekar
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Barbara Rosa
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Niels Heermeier
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Ching-Wen Shih
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Imad Limame
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Aris Koulas-Simos
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| | - Arash Rahimi-Iman
- I. Physikalisches Institut and Center for Materials Research, Justus-Liebig-Universität Gießen, 35392, Gießen, Germany
| | - Stephan Reitzenstein
- Institut für Festkörperphysik, Technische Universität Berlin, Hardenbergstrasse 36, 10623, Berlin, Germany
| |
Collapse
|
2
|
Hassan A, de Sousa DS, Bertaglia T, Crespilho FN. Enhanced label-free detection of proteins on Au nanoparticle micropatterns for surface-enhanced infrared absorption spectroscopy. Chem Commun (Camb) 2024; 60:7212-7215. [PMID: 38910552 DOI: 10.1039/d4cc01320d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
A label-free one-step lithographically masked deposition technique was implemented for the fabrication of gold nanoparticle (Au NP) micropatterns. These micropatterns serve as active substrates for surface-enhanced infrared absorption spectroscopy (SEIRAS) and exhibit a substantial increase in the IR signal upon adsorption of multiple proteins compared to untreated surfaces. Micro-FTIR chemical imaging was conducted to evaluate the efficacy of Au NP micropatterns as singular enhancers for SEIRAS across diverse IR-active substrates demonstrating a promising application for the detection of proteins at low concentrations within biological fluids.
Collapse
Affiliation(s)
- Ayaz Hassan
- Interdisciplinary Research Center in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, 1.5 KM defense Road Off Raiwand Road Lahore, Pakistan.
| | - Daniel S de Sousa
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
| | - Thiago Bertaglia
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
| | - Frank N Crespilho
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
| |
Collapse
|
3
|
Huang X, Ye R, Li W, Zeng JW, Lu YC, Hu H, Zhou Y, Hou L, Li ZP, Jiang HF, Xue X, Xu F, Dou X, Pan JW. Non-Line-of-Sight Imaging and Vibrometry Using a Comb-Calibrated Coherent Sensor. PHYSICAL REVIEW LETTERS 2024; 132:233802. [PMID: 38905673 DOI: 10.1103/physrevlett.132.233802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 05/13/2024] [Indexed: 06/23/2024]
Abstract
Non-line-of-sight (NLOS) imaging has the ability to reconstruct hidden objects, allowing a wide range of applications. Existing NLOS systems rely on pulsed lasers and time-resolved single-photon detectors to capture the information encoded in the time of flight of scattered photons. Despite remarkable advances, the pulsed time-of-flight LIDAR approach has limited temporal resolution and struggles to detect the frequency-associated information directly. Here, we propose and demonstrate the coherent scheme-frequency-modulated continuous wave calibrated by optical frequency comb-for high-resolution NLOS imaging, velocimetry, and vibrometry. Our comb-calibrated coherent sensor presents a system temporal resolution at subpicosecond and its superior signal-to-noise ratio permits NLOS imaging of complex scenes under strong ambient light. We show the capability of NLOS localization and 3D imaging at submillimeter scale and demonstrate NLOS vibrometry sensing at an accuracy of dozen Hertz. Our approach unlocks the coherent LIDAR techniques for widespread use in imaging science and optical sensing.
Collapse
|
4
|
Salimullah SM, Faisal M. Numerical exploration of multi-octave spanned supercontinuum generation with high coherence in single material photonic crystal fiber. Heliyon 2024; 10:e29822. [PMID: 38699045 PMCID: PMC11064140 DOI: 10.1016/j.heliyon.2024.e29822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 05/05/2024] Open
Abstract
We propose a single material microstructured optical fiber with more than five octave spanning supercontinuum generation. Due to using single material, compatibility checking between core and cladding material need not required. Moreover, the material is such chosen that optical transmission range is quite high in comparison to others. The fiber is designed in COMSOL platform and according to finite element method (FEM), numerical analysis is accomplished. Dispersion, confinement loss, nonlinearity etc. are investigated and exposed for a wavelength range of 2000-3000 nm. The proposed fiber reveals zero dispersion at 2200 nm, nonlinearity of 14,370 W-1km-1 and confinement loss around 10-9 order in dB/m. Finally, supercontinuum generation has been investigated inside the structure and obtained high coherence that span (from 1500 nm to 34,500 nm) over five octave. The generated spectrum fulfills the requirements for being applicable in frequency metrology, fiber laser and biophotonics. With the best of our knowing, such coherent and widened supercontinuua for single material fiber is yet to be proposed.
Collapse
Affiliation(s)
- Shah Md Salimullah
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
- Department of Electrical and Electronic Engineering, Ahsanullah University of Science and Technology, Dhaka 1208, Bangladesh
| | - Mohammad Faisal
- Department of Electrical and Electronic Engineering, Bangladesh University of Engineering and Technology, Dhaka 1000, Bangladesh
| |
Collapse
|
5
|
Gong J, Xiong L, Pu M, Li X, Ma X, Luo X. Visible Meta-Displays for Anti-Counterfeiting with Printable Dielectric Metasurfaces. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2308687. [PMID: 38342615 PMCID: PMC11077653 DOI: 10.1002/advs.202308687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/15/2024] [Indexed: 02/13/2024]
Abstract
Metasurfaces, 2D arrays of nanostructures, have gained significant attention in recent years due to their ability to manipulate light at the subwavelength scale. Their diverse applications range from advanced optical devices to sensing and imaging technologies. However, the mass production of dielectric metasurfaces with tailored properties for visible light has remained a challenge. Therefore, the demand for efficient and cost-effective fabrication methods for metasurfaces has driven the continuing development of various techniques. In this research article, a high-throughput production method is presented for multifunctional dielectric metasurfaces in the visible light range using one-step high-index TiO2-polymer composite (TPC) printing, which is a variant of nanoprinting lithography (NIL) for the direct replication of patterned multifunctional dielectric metasurfaces using a TPC material as the printing ink. The batch fabrication of dielectric metasurfaces is demonstrated with controlled geometry and excellent optical response, enabling high-performance light-matter interactions for potential applications of visible meta-displays.
Collapse
Affiliation(s)
- Jintao Gong
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
| | - Lingxing Xiong
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
- Key Laboratory for Information Science of Electromagnetic Waves (MoE)Fudan UniversityShanghai200433China
| | - Mingbo Pu
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
- College of Materials Sciences and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Xiong Li
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
- College of Materials Sciences and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Xiaoliang Ma
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
- College of Materials Sciences and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| | - Xiangang Luo
- National Key Laboratory of Optical Field Manipulation Science and TechnologyChinese Academy of SciencesChengdu610209China
- State Key Laboratory of Optical Technologies on Nano‐Fabrication and Micro‐EngineeringInstitute of Optics and ElectronicsChinese Academy of SciencesChengdu610209China
- College of Materials Sciences and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing100049China
| |
Collapse
|
6
|
Kim H, Jun T, Lee H, Chae BG, Yoon M, Kim C. Deep-learning based 3D birefringence image generation using 2D multi-view holographic images. Sci Rep 2024; 14:9879. [PMID: 38684698 PMCID: PMC11059389 DOI: 10.1038/s41598-024-60023-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 04/17/2024] [Indexed: 05/02/2024] Open
Abstract
Refractive index stands as an inherent characteristic of a material, allowing non-invasive exploration of the three-dimensional (3D) interior of the material. Certain materials with different refractive indices produce a birefringence phenomenon in which incident light is split into two polarization components when it passes through the materials. Representative birefringent materials appear in calcite crystals, liquid crystals (LCs), biological tissues, silk fibers, polymer films, etc. If the internal 3D shape of these materials can be visually expressed through a non-invasive method, it can greatly contribute to the semiconductor, display industry, optical components and devices, and biomedical diagnosis. This paper introduces a novel approach employing deep learning to generate 3D birefringence images using multi-viewed holographic interference images. First, we acquired a set of multi-viewed holographic interference pattern images and a 3D volume image of birefringence directly from a polarizing DTT (dielectric tensor tomography)-based microscope system about each LC droplet sample. The proposed model was trained to generate the 3D volume images of birefringence using the two-dimensional (2D) interference pattern image set. Performance evaluations were conducted against the ground truth images obtained directly from the DTT microscopy. Visualization techniques were applied to describe the refractive index distribution in the generated 3D images of birefringence. The results show the proposed method's efficiency in generating the 3D refractive index distribution from multi-viewed holographic interference images, presenting a novel data-driven alternative to traditional methods from the DTT devices.
Collapse
Affiliation(s)
- Hakdong Kim
- Department of Digital Contents, Sejong University, Seoul, Korea
| | - Taeheul Jun
- Department of Software Convergence, Sejong University, Seoul, Korea
| | - Hyoung Lee
- Communication and Media Research Lab, ETRI, Daejeon, Korea
| | - Byung Gyu Chae
- Communication and Media Research Lab, ETRI, Daejeon, Korea
| | - MinSung Yoon
- Communication and Media Research Lab, ETRI, Daejeon, Korea.
| | - Cheongwon Kim
- Department of Software, Sejong University, Seoul, Korea.
| |
Collapse
|
7
|
Vora N, Shekar P, Hanulia T, Esmail M, Patra A, Georgakoudi I. Deep learning-enabled detection of rare circulating tumor cell clusters in whole blood using label-free, flow cytometry. LAB ON A CHIP 2024; 24:2237-2252. [PMID: 38456773 PMCID: PMC11019838 DOI: 10.1039/d3lc00694h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/19/2024] [Indexed: 03/09/2024]
Abstract
Metastatic tumors have poor prognoses for progression-free and overall survival for all cancer patients. Rare circulating tumor cells (CTCs) and rarer circulating tumor cell clusters (CTCCs) are potential biomarkers of metastatic growth, with CTCCs representing an increased risk factor for metastasis. Current detection platforms are optimized for ex vivo detection of CTCs only. Microfluidic chips and size exclusion methods have been proposed for CTCC detection; however, they lack in vivo utility and real-time monitoring capability. Confocal backscatter and fluorescence flow cytometry (BSFC) has been used for label-free detection of CTCCs in whole blood based on machine learning (ML) enabled peak classification. Here, we expand to a deep-learning (DL)-based, peak detection and classification model to detect CTCCs in whole blood data. We demonstrate that DL-based BSFC has a low false alarm rate of 0.78 events per min with a high Pearson correlation coefficient of 0.943 between detected events and expected events. DL-based BSFC of whole blood maintains a detection purity of 72% and a sensitivity of 35.3% for both homotypic and heterotypic CTCCs starting at a minimum size of two cells. We also demonstrate through artificial spiking studies that DL-based BSFC is sensitive to changes in the number of CTCCs present in the samples and does not add variability in detection beyond the expected variability from Poisson statistics. The performance established by DL-based BSFC motivates its use for in vivo detection of CTCCs. Using transfer learning, we additionally validate DL-based BSFC on blood samples from different species and cancer cell types. Further developments of label-free BSFC to enhance throughput could lead to critical applications in the clinical detection of CTCCs and ex vivo isolation of CTCC from whole blood with minimal disruption and processing steps.
Collapse
Affiliation(s)
- Nilay Vora
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
| | - Prashant Shekar
- Department of Mathematics, Embry-Riddle Aeronautical University, Daytona Beach, FL, 32114, USA
| | - Taras Hanulia
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
- Institute of Physics, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Michael Esmail
- Tufts Comparative Medicine Services, Tufts University, Medford, MA, 02155, USA
| | - Abani Patra
- Data Intensive Studies Center, Tufts University, Medford, MA, 02155, USA
| | - Irene Georgakoudi
- Department of Biomedical Engineering, Tufts University, Medford, MA, 02155, USA.
| |
Collapse
|
8
|
Sun C, Zhong J, Gan Z, Chen L, Liang C, Feng H, Sun Z, Jiang Z, Li WD. Nanoimprint-induced strain engineering of two-dimensional materials. MICROSYSTEMS & NANOENGINEERING 2024; 10:49. [PMID: 38595945 PMCID: PMC11001999 DOI: 10.1038/s41378-024-00669-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 12/27/2023] [Accepted: 01/18/2024] [Indexed: 04/11/2024]
Abstract
The high stretchability of two-dimensional (2D) materials has facilitated the possibility of using external strain to manipulate their properties. Hence, strain engineering has emerged as a promising technique for tailoring the performance of 2D materials by controlling the applied elastic strain field. Although various types of strain engineering methods have been proposed, deterministic and controllable generation of the strain in 2D materials remains a challenging task. Here, we report a nanoimprint-induced strain engineering (NISE) strategy for introducing controllable periodic strain profiles on 2D materials. A three-dimensional (3D) tunable strain is generated in a molybdenum disulfide (MoS2) sheet by pressing and conforming to the topography of an imprint mold. Different strain profiles generated in MoS2 are demonstrated and verified by Raman and photoluminescence (PL) spectroscopy. The strain modulation capability of NISE is investigated by changing the imprint pressure and the patterns of the imprint molds, which enables precise control of the strain magnitudes and distributions in MoS2. Furthermore, a finite element model is developed to simulate the NISE process and reveal the straining behavior of MoS2. This deterministic and effective strain engineering technique can be easily extended to other materials and is also compatible with common semiconductor fabrication processes; therefore, it provides prospects for advances in broad nanoelectronic and optoelectronic devices.
Collapse
Affiliation(s)
- Chuying Sun
- The University of Hong Kong, Hong Kong, China
| | | | - Zhuofei Gan
- The University of Hong Kong, Hong Kong, China
| | - Liyang Chen
- The University of Hong Kong, Hong Kong, China
| | | | | | - Zhao Sun
- The University of Hong Kong, Hong Kong, China
| | - Zijie Jiang
- The University of Hong Kong, Hong Kong, China
| | - Wen-Di Li
- The University of Hong Kong, Hong Kong, China
| |
Collapse
|
9
|
Ning J, Zheng Y, Wang S, Jiang T, Zhao J, Chen K, Feng Y. Reconfigurable Tri-Mode Metasurface for Broadband Low Observation, Wide-Range Tracing, and Backscatter Communication. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2304879. [PMID: 38342632 PMCID: PMC11022728 DOI: 10.1002/advs.202304879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 01/25/2024] [Indexed: 02/13/2024]
Abstract
In the current prevalent complex electromagnetic (EM) environment, intelligent methods for versatile and integrated control of EM waves using compact devices are both essential and challenging. These varied wave control objectives can at times conflict with one another, such as the need for broad absorption to remain inconspicuous, while also requiring enhanced backward scattering for highly reliable tracing and secure communication. To address these sophisticated challenges, a microwave-frequency reconfigurable tri-mode metasurface (RTMM) is introduced. The proposed innovation enables three distinct operational modes: broadband low observation, enhanced EM wave tracing, and backscatter communication over a wide-angle range by simple control of the PIN diodes embedded in each meta-atom. The proof-of-concept demonstration of the fabricated prototype verified the switchable tri-mode performance of the RTMM. This proposed RTMM can be adapted to various applications, including EM shielding, target detection, and secure communication in complex and threatening EM environments, paving the way for environmentally-adaptive EM wave manipulation.
Collapse
Affiliation(s)
- Jing Ning
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Yilin Zheng
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Shaojie Wang
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Tian Jiang
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Junming Zhao
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Ke Chen
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| | - Yijun Feng
- Department of Electronic EngineeringSchool of Electronic Science and EngineeringNanjing UniversityNanjing210023China
| |
Collapse
|
10
|
Pang K, Liu Q, Zhu Y, Wei X. In vivo photoacoustic flow cytometry-based study of the effect of melanin content on melanoma metastasis. JOURNAL OF BIOPHOTONICS 2024; 17:e202300405. [PMID: 38010214 DOI: 10.1002/jbio.202300405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/29/2023]
Abstract
A major cause of death in cancer patients is distant metastasis of tumors, in which circulating tumor cells (CTCs) are an important marker. Photoacoustic flow cytometry (PAFC) can monitor CTCs in real time, non-invasively, and label-free; we built a PAFC system and validated the feasibility of PAFC for monitoring CTCs using in vivo animal experiments. By cultivating heavily-pigmented and moderately-pigmented melanoma cells, more CTCs were detected in mice inoculated with moderately-pigmented tumor cells, resulting in more distant metastases and poorer survival status. Tumor cells with lower melanin content may produce more CTCs, increasing the risk of metastasis. CTC melanin content may be down-regulated during the metastatic which may be a potential indicator for assessing the risk of melanoma metastasis. In conclusion, PAFC can be used to assess the risk of melanoma metastasis by dynamically monitoring the number of CTCs and the CTC melanin content in future clinical diagnoses.
Collapse
Affiliation(s)
- Kai Pang
- School of Instrument Science and Opto Electronics Engineering of Beijing Information Science & Technology University, Beijing, China
| | - Qi Liu
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yuxi Zhu
- School of Instrument Science and Opto Electronics Engineering of Beijing Information Science & Technology University, Beijing, China
| | - Xunbin Wei
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Peking University Cancer Hospital & Institute and Biomedical Engineering Department, Peking University, Beijing, China
| |
Collapse
|
11
|
Kavčič A, Podlipec R, Krišelj A, Jelen A, Vella D, Humar M. Intracellular biocompatible hexagonal boron nitride quantum emitters as single-photon sources and barcodes. NANOSCALE 2024; 16:4691-4702. [PMID: 38319598 PMCID: PMC10903403 DOI: 10.1039/d3nr05305a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Color centers in hexagonal boron nitride (hBN) have been emerging as a multifunctional platform for various optical applications including quantum information processing, quantum computing and imaging. Simultaneously, due to its biocompatibility and biodegradability hBN is a promising material for biomedical applications. In this work, we demonstrate single-photon emission from hBN color centers embedded inside live cells and their application to cellular barcoding. The generation and internalization of multiple color centers into cells was performed via simple and scalable procedure while keeping the cells unharmed. The emission from live cells was observed as multiple diffraction-limited spots, which exhibited excellent single-photon characteristics with high single-photon purity of 0.1 and superb emission stability without photobleaching or spectral shifts over several hours. Due to different emission wavelengths and peak widths of the color centers, they were employed as barcodes. We term them Quantum Photonic Barcodes (QPBs). Each QPB can exist in one out of 470 possible distinguishable states and a combination of a few QPBs per cell can be used to uniquely tag virtually an unlimited number of cells. The barcodes developed here offer some excellent properties, including ease of production by a single-step procedure, biocompatibility and biodegradability, emission stability, no photobleaching, small size and a huge number of unique barcodes. This work provides a basis for the use of hBN color centers for robust barcoding of cells and due to the single photon emission, presented concepts could in future be extended to quantum-limited sensing and super-resolution imaging.
Collapse
Affiliation(s)
- Aljaž Kavčič
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
| | - Rok Podlipec
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Ion Beam Center, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Ana Krišelj
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
| | - Andreja Jelen
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
| | - Daniele Vella
- Faculty of Mechanical Engineering, Laboratory for Laser Techniques, University of Ljubljana, Aškerčeva 6, SI-1000 Ljubljana, Slovenia
| | - Matjaž Humar
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
- CENN Nanocenter, Jamova 39, SI-1000 Ljubljana, Slovenia
| |
Collapse
|
12
|
Yuan T, Riobo L, Gasparin F, Ntziachristos V, Pleitez MA. Phase-shifting optothermal microscopy enables live-cell mid-infrared hyperspectral imaging of large cell populations at high confluency. SCIENCE ADVANCES 2024; 10:eadj7944. [PMID: 38381817 PMCID: PMC10881023 DOI: 10.1126/sciadv.adj7944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 01/11/2024] [Indexed: 02/23/2024]
Abstract
Rapid live-cell hyperspectral imaging at large fields of view (FOVs) and high cell confluency remains challenging for conventional vibrational spectroscopy-based microscopy technologies. At the same time, imaging at high cell confluency and large FOVs is important for proper cell function and statistical significance of measurements, respectively. Here, we introduce phase-shifting mid-infrared optothermal microscopy (PSOM), which interprets molecular-vibrational information as the optical path difference induced by mid-infrared absorption and can take snapshot vibrational images over broad excitation areas at high live-cell confluency. By means of phase-shifting, PSOM suppresses noise to a quarter of current optothermal microscopy modalities to allow capturing live-cell vibrational images at FOVs up to 50 times larger than state of the art. PSOM also reduces illumination power flux density (PFD) down to four orders of magnitude lower than other conventional vibrational microscopy methods, such as coherent anti-Stokes Raman scattering (CARS), thus considerably decreasing the risk of cell photodamage.
Collapse
Affiliation(s)
- Tao Yuan
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Lucas Riobo
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Francesca Gasparin
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| | - Vasilis Ntziachristos
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
- Munich Institute of Biomedical Engineering (MIBE), Technical University of Munich, Garching b. München, Germany
| | - Miguel A. Pleitez
- Chair of Biological Imaging at the Central Institute for Translational Cancer Research (TranslaTUM), School of Medicine and Health, Technical University of Munich, Munich, Germany
- Institute of Biological and Medical Imaging, Helmholtz Zentrum München, Neuherberg, Germany
| |
Collapse
|
13
|
Liu J, Marquez M, Lai Y, Ibrahim H, Légaré K, Lassonde P, Liu X, Hehn M, Mangin S, Malinowski G, Li Z, Légaré F, Liang J. Swept coded aperture real-time femtophotography. Nat Commun 2024; 15:1589. [PMID: 38383494 PMCID: PMC10882056 DOI: 10.1038/s41467-024-45820-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 01/31/2024] [Indexed: 02/23/2024] Open
Abstract
Single-shot real-time femtophotography is indispensable for imaging ultrafast dynamics during their times of occurrence. Despite their advantages over conventional multi-shot approaches, existing techniques confront restricted imaging speed or degraded data quality by the deployed optoelectronic devices and face challenges in the application scope and acquisition accuracy. They are also hindered by the limitations in the acquirable information imposed by the sensing models. Here, we overcome these challenges by developing swept coded aperture real-time femtophotography (SCARF). This computational imaging modality enables all-optical ultrafast sweeping of a static coded aperture during the recording of an ultrafast event, bringing full-sequence encoding of up to 156.3 THz to every pixel on a CCD camera. We demonstrate SCARF's single-shot ultrafast imaging ability at tunable frame rates and spatial scales in both reflection and transmission modes. Using SCARF, we image ultrafast absorption in a semiconductor and ultrafast demagnetization of a metal alloy.
Collapse
Affiliation(s)
- Jingdan Liu
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
- Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Miguel Marquez
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Yingming Lai
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Heide Ibrahim
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Katherine Légaré
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Philippe Lassonde
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Xianglei Liu
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Michel Hehn
- Institut Jean Lamour, Université de Lorraine, Parc de Saurupt CS 50840, Nancy, 54011, France
| | - Stéphane Mangin
- Institut Jean Lamour, Université de Lorraine, Parc de Saurupt CS 50840, Nancy, 54011, France
| | - Grégory Malinowski
- Institut Jean Lamour, Université de Lorraine, Parc de Saurupt CS 50840, Nancy, 54011, France
| | - Zhengyan Li
- School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, Hubei, China
| | - François Légaré
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada
| | - Jinyang Liang
- Centre Énergie Matériaux Télécommunications, Institut National de la Recherche Scientifique, Université du Québec, 1650 boulevard Lionel-Boulet, Varennes, Québec, J3X1P7, Canada.
| |
Collapse
|
14
|
Hu J, Mengu D, Tzarouchis DC, Edwards B, Engheta N, Ozcan A. Diffractive optical computing in free space. Nat Commun 2024; 15:1525. [PMID: 38378715 PMCID: PMC10879514 DOI: 10.1038/s41467-024-45982-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/09/2024] [Indexed: 02/22/2024] Open
Abstract
Structured optical materials create new computing paradigms using photons, with transformative impact on various fields, including machine learning, computer vision, imaging, telecommunications, and sensing. This Perspective sheds light on the potential of free-space optical systems based on engineered surfaces for advancing optical computing. Manipulating light in unprecedented ways, emerging structured surfaces enable all-optical implementation of various mathematical functions and machine learning tasks. Diffractive networks, in particular, bring deep-learning principles into the design and operation of free-space optical systems to create new functionalities. Metasurfaces consisting of deeply subwavelength units are achieving exotic optical responses that provide independent control over different properties of light and can bring major advances in computational throughput and data-transfer bandwidth of free-space optical processors. Unlike integrated photonics-based optoelectronic systems that demand preprocessed inputs, free-space optical processors have direct access to all the optical degrees of freedom that carry information about an input scene/object without needing digital recovery or preprocessing of information. To realize the full potential of free-space optical computing architectures, diffractive surfaces and metasurfaces need to advance symbiotically and co-evolve in their designs, 3D fabrication/integration, cascadability, and computing accuracy to serve the needs of next-generation machine vision, computational imaging, mathematical computing, and telecommunication technologies.
Collapse
Affiliation(s)
- Jingtian Hu
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
| | - Deniz Mengu
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
| | - Dimitrios C Tzarouchis
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
- Meta Materials Inc., Athens, 15123, Greece
| | - Brian Edwards
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Nader Engheta
- Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, 19104, USA
| | - Aydogan Ozcan
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA.
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA.
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA.
| |
Collapse
|
15
|
Wang B, Li Y, Shen X. Nonlinear photonic crystals for completely independent asymmetric holographic imaging. OPTICS LETTERS 2024; 49:375-378. [PMID: 38194572 DOI: 10.1364/ol.507060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/04/2023] [Indexed: 01/11/2024]
Abstract
Nonlinear photonic crystals (NPCs) are microstructures characterized by a spatially modulated second-order nonlinear coefficient that have been extensively used for the generation and beam-shaping of coherent light at new frequencies. NPCs for asymmetric optical transmission have a significant impact on novel and multifunction photonic devices. However, nonreciprocal NPCs capable of completely independent asymmetric holographic imaging for the opposite propagation directions have not been reported. Here, we propose a holographic combiner for a different independent image generation at the second-harmonic (SH) wavelength when illuminated from opposite sides of NPCs. The design of the holographic combiner is based on a 3D nonlinear detour phase holography and an orbital angular momentum (OAM) multiplexing nonlinear holography. This work achieves completely independent asymmetric holographic imaging at the SH frequency by using NPCs, which may have potential applications in classical and quantum optical devices.
Collapse
|
16
|
Qureshi MM, Allam N, Im J, Kwon HS, Chung E, Vitkin IA. Advances in laser speckle imaging: From qualitative to quantitative hemodynamic assessment. JOURNAL OF BIOPHOTONICS 2024; 17:e202300126. [PMID: 37545037 DOI: 10.1002/jbio.202300126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 07/03/2023] [Accepted: 07/27/2023] [Indexed: 08/08/2023]
Abstract
Laser speckle imaging (LSI) techniques have emerged as a promising method for visualizing functional blood vessels and tissue perfusion by analyzing the speckle patterns generated by coherent light interacting with living biological tissue. These patterns carry important biophysical tissue information including blood flow dynamics. The noninvasive, label-free, and wide-field attributes along with relatively simple instrumental schematics make it an appealing imaging modality in preclinical and clinical applications. The review outlines the fundamentals of speckle physics and the three categories of LSI techniques based on their degree of quantification: qualitative, semi-quantitative and quantitative. Qualitative LSI produces microvascular maps by capturing speckle contrast variations between blood vessels containing moving red blood cells and the surrounding static tissue. Semi-quantitative techniques provide a more accurate analysis of blood flow dynamics by accounting for the effect of static scattering on spatiotemporal parameters. Quantitative LSI such as optical speckle image velocimetry provides quantitative flow velocity measurements, which is inspired by the particle image velocimetry in fluid mechanics. Additionally, discussions regarding the prospects of future innovations in LSI techniques for optimizing the vascular flow quantification with associated clinical outlook are presented.
Collapse
Affiliation(s)
- Muhammad Mohsin Qureshi
- Division of Biophysics and Bioimaging, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Nader Allam
- Division of Biophysics and Bioimaging, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
| | - Jeongmyo Im
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Hyuk-Sang Kwon
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Euiheon Chung
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
- AI Graduate School, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - I Alex Vitkin
- Division of Biophysics and Bioimaging, Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Department of Radiation Oncology, University of Toronto, Toronto, Canada
| |
Collapse
|
17
|
Shang X, Wang N, Cao S, Chen H, Fan D, Zhou N, Qiu M. Fiber-Integrated Force Sensor using 3D Printed Spring-Composed Fabry-Perot Cavities with a High Precision Down to Tens of Piconewton. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2305121. [PMID: 37985176 DOI: 10.1002/adma.202305121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/23/2023] [Indexed: 11/22/2023]
Abstract
Developing microscale sensors capable of force measurements down to the scale of piconewtons is of fundamental importance for a wide range of applications. To date, advanced instrumentations such as atomic force microscopes and other specifically developed micro/nano-electromechanical systems face challenges such as high cost, complex detection systems and poor electromagnetic compatibility. Here, it presents the unprecedented design and 3D printing of general fiber-integrated force sensors using spring-composed Fabry-Perot cavities. It calibrates these microscale devices employing varied-diameter μ $\umu$ m-scale silica particles as standard weights. The force sensitivity and resolution reach values of (0.436 ± 0.007) nmnN-1 and (40.0 ± 0.7) pN, respectively, which are the best resolutions among all fiber-based nanomechanical probes so far. It also measured the non-linear airflow force distributions produced from a nozzle with an orifice of 2 μ $\umu$ m, which matches well with the full-sized simulations. With further customization of their geometries and materials, it anticipates the easy-to-use force probe can well extend to many other applications such as air/fluidic turbulences sensing, micro-manipulations, and biological sensing.
Collapse
Affiliation(s)
- Xinggang Shang
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Ning Wang
- Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
- Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
- Taiji Laboratory for Gravitational Wave Universe, University of Chinese Academy of Sciences, Hangzhou, Zhejiang, 310024, China
| | - Simin Cao
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Hehao Chen
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Dixia Fan
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Nanjia Zhou
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
| | - Min Qiu
- Key Laboratory of 3D Micro/Nano Fabrication and Characterization of Zhejiang Province, School of Engineering, Westlake University, Hangzhou, Zhejiang, 310024, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou, Zhejiang, 310024, China
- Westlake Institute for Optoelectronics, Fuyang, Hangzhou, 311421, China
| |
Collapse
|
18
|
Zong H, Yurdakul C, Zhao J, Wang Z, Chen F, Ünlü MS, Cheng JX. Bond-selective full-field optical coherence tomography. OPTICS EXPRESS 2023; 31:41202-41218. [PMID: 38087525 DOI: 10.1364/oe.503861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 11/10/2023] [Indexed: 12/18/2023]
Abstract
Optical coherence tomography (OCT) is a label-free, non-invasive 3D imaging tool widely used in both biological research and clinical diagnosis. Conventional OCT modalities can only visualize specimen tomography without chemical information. Here, we report a bond-selective full-field OCT (BS-FF-OCT), in which a pulsed mid-infrared laser is used to modulate the OCT signal through the photothermal effect, achieving label-free bond-selective 3D sectioned imaging of highly scattering samples. We first demonstrate BS-FF-OCT imaging of 1 µm PMMA beads embedded in agarose gel. Next, we show 3D hyperspectral imaging of up to 75 µm of polypropylene fiber mattress from a standard surgical mask. We then demonstrate BS-FF-OCT imaging on biological samples, including cancer cell spheroids and C. elegans. Using an alternative pulse timing configuration, we finally demonstrate the capability of BS-FF-OCT on imaging a highly scattering myelinated axons region in a mouse brain tissue slice.
Collapse
|
19
|
Samolis P, Zhu X, Sander MY. Time-Resolved Mid-Infrared Photothermal Microscopy for Imaging Water-Embedded Axon Bundles. Anal Chem 2023; 95:16514-16521. [PMID: 37880191 PMCID: PMC10652238 DOI: 10.1021/acs.analchem.3c02352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 10/07/2023] [Indexed: 10/27/2023]
Abstract
Few experimental tools exist for performing label-free imaging of biological samples in a water-rich environment due to the high infrared absorption of water, overlapping with major protein and lipid bands. A novel imaging modality based on time-resolved mid-infrared photothermal microscopy is introduced and applied to imaging axon bundles in a saline bath environment. Photothermally induced spatial gradients at the axon bundle membrane interfaces with saline and surrounding biological tissue are observed and temporally characterized by a high-speed boxcar detection system. Localized time profiles with an enhanced signal-to-noise, hyper-temporal image stacks, and two-dimensional mapping of the time decay profiles are acquired without the need for complex post image processing. Axon bundles are found to have a larger distribution of time decay profiles compared to the water background, allowing background differentiation based on these transient dynamics. The quantitative analysis of the signal evolution over time allows characterizing the level of thermal confinement at different regions. When axon bundles are surrounded by complex heterogeneous tissue, which contains smaller features, a stronger thermal confinement is observed compared to a water environment, thus shedding light on the heat transfer dynamics across aqueous biological interfaces.
Collapse
Affiliation(s)
- Panagis
D. Samolis
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
| | - Xuedong Zhu
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
| | - Michelle Y. Sander
- Department
of Electrical and Computer Engineering, Boston University, Boston, Massachusetts 02215, United States
- Photonics
Center, Boston University, Boston, Massachusetts 02215, United States
- Department
of Biomedical Engineering, Boston University, Boston, Massachusetts 02215, United States
- Division
of Materials Science and Engineering, Boston
University, Brookline, Massachusetts 02446, United States
| |
Collapse
|
20
|
Yuan X, Wang Y, Xu Z, Zhou T, Fang L. Training large-scale optoelectronic neural networks with dual-neuron optical-artificial learning. Nat Commun 2023; 14:7110. [PMID: 37925451 PMCID: PMC10625607 DOI: 10.1038/s41467-023-42984-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 10/25/2023] [Indexed: 11/06/2023] Open
Abstract
Optoelectronic neural networks (ONN) are a promising avenue in AI computing due to their potential for parallelization, power efficiency, and speed. Diffractive neural networks, which process information by propagating encoded light through trained optical elements, have garnered interest. However, training large-scale diffractive networks faces challenges due to the computational and memory costs of optical diffraction modeling. Here, we present DANTE, a dual-neuron optical-artificial learning architecture. Optical neurons model the optical diffraction, while artificial neurons approximate the intensive optical-diffraction computations with lightweight functions. DANTE also improves convergence by employing iterative global artificial-learning steps and local optical-learning steps. In simulation experiments, DANTE successfully trains large-scale ONNs with 150 million neurons on ImageNet, previously unattainable, and accelerates training speeds significantly on the CIFAR-10 benchmark compared to single-neuron learning. In physical experiments, we develop a two-layer ONN system based on DANTE, which can effectively extract features to improve the classification of natural images.
Collapse
Affiliation(s)
- Xiaoyun Yuan
- Department of Electronic Engineering, Tsinghua University, Beijing, China
- Beijing National Research Center for Information Science and Technology (BNRist), Beijing, China
- Institute for Brain and Cognitive Science, Tsinghua University (THUIBCS), Beijing, China
| | - Yong Wang
- Department of Electronic Engineering, Tsinghua University, Beijing, China
| | - Zhihao Xu
- Department of Electronic Engineering, Tsinghua University, Beijing, China
- Tsinghua Shenzhen International Graduate School, Shenzhen, China
| | - Tiankuang Zhou
- Department of Electronic Engineering, Tsinghua University, Beijing, China
- Beijing National Research Center for Information Science and Technology (BNRist), Beijing, China
- Institute for Brain and Cognitive Science, Tsinghua University (THUIBCS), Beijing, China
| | - Lu Fang
- Department of Electronic Engineering, Tsinghua University, Beijing, China.
- Beijing National Research Center for Information Science and Technology (BNRist), Beijing, China.
- Institute for Brain and Cognitive Science, Tsinghua University (THUIBCS), Beijing, China.
| |
Collapse
|
21
|
Liu J, Zhang X, Fu M, Wang X, Gao Y, Xu X, Xiao T, Wang Q, Fan Q. A diketopyrrolopyrrole-based small molecule with an extended conjugated skeleton and J-aggregation behavior for 808 nm laser triggered phototheranostics. Biomater Sci 2023; 11:7124-7131. [PMID: 37698015 DOI: 10.1039/d3bm01107k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
The development of phototheranostic agents, specifically those based on organic small molecules (OSMs) with long wavelength excitation/emission, is an attractive but challenging project. In this contribution, we designed and synthesized a novel conjugate small molecule with a linear structure, named DPP-OPIC. Water-soluble nanoparticle DPP-OPIC NPs were fabricated. They exhibited strong absorption in the region of 600-1000 nm, which was due to the extended conjugate length of the molecular skeleton and J-aggregation behavior. Under 808 nm laser excitation, DPP-OPIC NPs were capable of producing outstanding near-infrared-II (NIR-II, 900-1700 nm) fluorescence. The photoluminescence quantum yield was determined as 0.58%, which enabled high-resolution in vivo tumor imaging. Additionally, a notable photothermal effect with a high photothermal conversion efficiency (41.5%) was achieved by the irradiation of DPP-OPIC NPs. Hence, DPP-OPIC NPs can be used as superior phototheranostic agents, providing valuable contributions to NIR-II fluorescence imaging and photothermal therapy.
Collapse
Affiliation(s)
- Jiawei Liu
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Xinmin Zhang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Mingxuan Fu
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Xiaoyuan Wang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Yicong Gao
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Xingpeng Xu
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Tangxin Xiao
- School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, China
| | - Qi Wang
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| | - Quli Fan
- State Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
| |
Collapse
|
22
|
Meng Y, Zhong H, Xu Z, He T, Kim JS, Han S, Kim S, Park S, Shen Y, Gong M, Xiao Q, Bae SH. Functionalizing nanophotonic structures with 2D van der Waals materials. NANOSCALE HORIZONS 2023; 8:1345-1365. [PMID: 37608742 DOI: 10.1039/d3nh00246b] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
The integration of two-dimensional (2D) van der Waals materials with nanostructures has triggered a wide spectrum of optical and optoelectronic applications. Photonic structures of conventional materials typically lack efficient reconfigurability or multifunctionality. Atomically thin 2D materials can thus generate new functionality and reconfigurability for a well-established library of photonic structures such as integrated waveguides, optical fibers, photonic crystals, and metasurfaces, to name a few. Meanwhile, the interaction between light and van der Waals materials can be drastically enhanced as well by leveraging micro-cavities or resonators with high optical confinement. The unique van der Waals surfaces of the 2D materials enable handiness in transfer and mixing with various prefabricated photonic templates with high degrees of freedom, functionalizing as the optical gain, modulation, sensing, or plasmonic media for diverse applications. Here, we review recent advances in synergizing 2D materials to nanophotonic structures for prototyping novel functionality or performance enhancements. Challenges in scalable 2D materials preparations and transfer, as well as emerging opportunities in integrating van der Waals building blocks beyond 2D materials are also discussed.
Collapse
Affiliation(s)
- Yuan Meng
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, USA.
| | - Hongkun Zhong
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, China.
| | - Zhihao Xu
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Tiantian He
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, China.
| | - Justin S Kim
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Sangmoon Han
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, USA.
| | - Sunok Kim
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, USA.
| | - Seoungwoong Park
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
| | - Yijie Shen
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
- Optoelectronics Research Centre, University of Southampton, Southampton, UK
| | - Mali Gong
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, China.
| | - Qirong Xiao
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, China.
| | - Sang-Hoon Bae
- Department of Mechanical Engineering and Materials Science, Washington University in St. Louis, St. Louis, MO, USA.
- Institute of Materials Science and Engineering, Washington University in St. Louis, St. Louis, MO, USA
| |
Collapse
|
23
|
González-Acuña RG. Equations to design an aplanatic catadioptric freeform optical system. APPLIED OPTICS 2023; 62:7226-7232. [PMID: 37855578 DOI: 10.1364/ao.500031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 08/28/2023] [Indexed: 10/20/2023]
Abstract
The present paper introduces a set of equations to design an aplanatic catadioptric freeform optical system. These equations form a partial differential equation system, in which a numerical solution defines the first and last surfaces of the catadioptric freeform optical system, composed of an arbitrary number of reflective/refractive surfaces with arbitrary shapes and orientations. The solution of the equation can serve as an initial setup of a more complex design that can be optimized. An illustrative example is presented to show the methodology introduced in this paper.
Collapse
|
24
|
Zhang P, Guo Q, Wu H, Gong Z, Nie B, Hu Y, Chen Z, Xu J. Equilibrium Dynamics of Mutually Confined Waves with Signed Analogous Masses. PHYSICAL REVIEW LETTERS 2023; 131:087201. [PMID: 37683152 DOI: 10.1103/physrevlett.131.087201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 12/01/2022] [Accepted: 07/10/2023] [Indexed: 09/10/2023]
Abstract
We report the first experimental realization of equilibrium dynamics of mutually confined waves with signed analogous masses in an optical fiber. Our Letter is mainly demonstrated by considering a mutual confinement between a soliton pair and a dispersive wave experiencing opposite dispersion. The resulting wave-packet complex is found robust upon random perturbation and collision with other waves. The equilibrium dynamics are also extended to scenarios of more than three waves. Our finding may trigger fundamental interest in the dynamics of many-body systems arising from the concept of negative mass, which is promising for new applications based on localized nonlinear waves.
Collapse
Affiliation(s)
- Ping Zhang
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Qing Guo
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Hao Wu
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Zeyu Gong
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Binbin Nie
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Yi Hu
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Zhigang Chen
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| | - Jingjun Xu
- The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China
| |
Collapse
|
25
|
Tran MT, Van Quang N, Huyen NT, Tu N, Van Du N, Trung DQ, Tuan NT, Hung ND, Viet DX, Tung DT, Trung Kien ND, Hao Tam TT, Huy PT. High quantum efficiency and excellent color purity of red-emitting Eu 3+-heavily doped Gd(BO 2) 3-Y 3BO 6-GdBO 3 phosphors for NUV-pumped WLED applications. RSC Adv 2023; 13:25069-25080. [PMID: 37614782 PMCID: PMC10443187 DOI: 10.1039/d3ra03955b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/07/2023] [Indexed: 08/25/2023] Open
Abstract
Eu3+-doped phosphors have been much attractive owing to their narrow-band red emission peak at 610-630 nm with high color purity; however, the weak and narrow absorption band in the NUV region limits their applications. Doping a higher amount of Eu3+ ions into a non-concentration quenching host could be key to enhancing the efficiency of the absorption value and emission intensity. Hence, the design of Eu3+-heavily doped phosphors with a suitable host lattice is key for applications. In this study, red-emitting Eu3+-doped Gd(BO2)3-Y3BO6-GdBO3 (GdYGd:Eu3+) phosphor with a high quantum efficiency of 58.4% and excellent color purity of 99.5% is reported for the first time. The phosphor is efficiently excited by NUV light at 394 nm and emits a strong red emission band in the 590-710 nm range, peaking at 612 nm. The optimal annealing temperature and Eu3+ doping content to obtain the strongest PL intensity are 1100 °C and 20 mol%, respectively. The optimized GdYGd:Eu3+ phosphor possesses a high activation energy of 0.319 eV and a lifetime of 1.14 ms. An illustration of phosphor-coated NUV LED with chromaticity coordinates (x = 0.5636,y = 0.2961) was successfully synthesized, demonstrating the great potential of GdYGd:Eu3+ phosphor for NUV-pumped WLED applications.
Collapse
Affiliation(s)
- Manh Trung Tran
- Faculty of Materials Science and Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| | - Nguyen Van Quang
- Department of Chemistry Hanoi Pedagogical University 2 Phuc Yen Vinh Phuc Vietnam
| | - Nguyen Thi Huyen
- Department of Chemistry Hanoi Pedagogical University 2 Phuc Yen Vinh Phuc Vietnam
| | - Nguyen Tu
- Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| | - Nguyen Van Du
- Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| | - Do Quang Trung
- Faculty of Fundamental Sciences, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| | - Nguyen Tri Tuan
- College of Science, Cantho University 3/2 Ninh Kieu Cantho 94000 Vietnam
| | - Nguyen Duy Hung
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam
| | - Dao Xuan Viet
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam
| | - Duong Thanh Tung
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) 01 Dai Co Viet Hanoi 10000 Vietnam
| | - Nguyen Duc Trung Kien
- Faculty of Electrical and Electronic Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| | - Tong Thi Hao Tam
- School of Information Technology and Digital Economics (SITDE), National Economics University (NEU) 207 Giai Phong Street Hanoi 10000 Vietnam
| | - Pham Thanh Huy
- Faculty of Materials Science and Engineering, Phenikaa University Yen Nghia, Ha-Dong district Hanoi 10000 Vietnam
| |
Collapse
|
26
|
Ishigane G, Toda K, Tamamitsu M, Shimada H, Badarla VR, Ideguchi T. Label-free mid-infrared photothermal live-cell imaging beyond video rate. LIGHT, SCIENCE & APPLICATIONS 2023; 12:174. [PMID: 37463888 DOI: 10.1038/s41377-023-01214-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/14/2023] [Accepted: 06/21/2023] [Indexed: 07/20/2023]
Abstract
Advancement in mid-infrared (MIR) technology has led to promising biomedical applications of MIR spectroscopy, such as liquid biopsy or breath diagnosis. On the contrary, MIR microscopy has been rarely used for live biological samples in an aqueous environment due to the lack of spatial resolution and the large water absorption background. Recently, mid-infrared photothermal (MIP) imaging has proven to be applicable to 2D and 3D single-cell imaging with high spatial resolution inherited from visible light. However, the maximum measurement rate has been limited to several frames s-1, limiting its range of use. Here, we develop a significantly improved wide-field MIP quantitative phase microscope with two orders-of-magnitude higher signal-to-noise ratio than previous MIP imaging techniques and demonstrate live-cell imaging beyond video rate. We first derive optimal system design by numerically simulating thermal conduction following the photothermal effect. Then, we develop the designed system with a homemade nanosecond MIR optical parametric oscillator and a high full-well-capacity image sensor. Our high-speed and high-spatial-resolution MIR microscope has great potential to become a new tool for life science, in particular for live-cell analysis.
Collapse
Affiliation(s)
- Genki Ishigane
- Department of Physics, The University of Tokyo, Tokyo, Japan
| | - Keiichiro Toda
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Institute for Photon Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Miu Tamamitsu
- Department of Physics, The University of Tokyo, Tokyo, Japan
- Institute for Photon Science and Technology, The University of Tokyo, Tokyo, Japan
| | - Hiroyuki Shimada
- Institute for Photon Science and Technology, The University of Tokyo, Tokyo, Japan
| | | | - Takuro Ideguchi
- Department of Physics, The University of Tokyo, Tokyo, Japan.
- Institute for Photon Science and Technology, The University of Tokyo, Tokyo, Japan.
| |
Collapse
|
27
|
González-Acuña RG. Power set of stigmatic freeform catadioptric systems. APPLIED OPTICS 2023; 62:5427-5432. [PMID: 37706859 DOI: 10.1364/ao.489417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/15/2023] [Indexed: 09/15/2023]
Abstract
A method to design catadioptric systems from scratch based on optimizing an element of the power set of stigmatic catadioptric systems is presented. This set contains all possible stigmatic catadioptric systems. The deduction of the set is also presented in this paper, and its derivation is totally analytical. Additionally, an illustrative example of optimization of an element of the mentioned set is presented. The results are as expected.
Collapse
|
28
|
González-Acuña RG. Aplanatic freeform-mirror-based optical systems. APPLIED OPTICS 2023; 62:5260-5266. [PMID: 37707230 DOI: 10.1364/ao.489061] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 06/13/2023] [Indexed: 09/15/2023]
Abstract
The exact partial differential equation to design aplanatic freeform-mirror-based optical systems is presented. The partial differential equation is not limited by the number of freeform surfaces or their orientations. The solutions of this partial differential equation can be useful as initial setups that can be optimized to meet higher criteria. One of these solutions is tested as an example of the initial setup, and the results are as expected by the theory.
Collapse
|
29
|
Gomez-Gonzalez E, Muñoz O, Gomez-Martin JC, Aceituno-Castro J, Fernandez-Muñoz B, Navas-Garcia JM, Barriga-Rivera A, Fernandez-Lizaranzu I, Munoz-Gonzalez FJ, Parrilla-Giraldez R, Requena-Lancharro D, Gil-Gamboa P, Ramos JL, Rosell-Valle C, Gomez-Gonzalez C, Martin-Lopez M, Relimpio-Lopez MI, Perales-Esteve MA, Puppo-Moreno A, Garcia-Cozar FJ, Olvera-Collantes L, de Los Santos-Trigo S, Gomez E, Sanchez-Pernaute R, Padillo-Ruiz J, Marquez-Rivas J. Polarimetric imaging for the detection of synthetic models of SARS-CoV-2: A proof of concept. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 2023; 302:108567. [PMID: 36945203 PMCID: PMC9987604 DOI: 10.1016/j.jqsrt.2023.108567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 03/04/2023] [Accepted: 03/04/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE To conduct a proof-of-concept study of the detection of two synthetic models of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) using polarimetric imaging. APPROACH Two SARS-CoV-2 models were prepared as engineered lentiviruses pseudotyped with the G protein of the vesicular stomatitis virus, and with the characteristic Spike protein of SARS-CoV-2. Samples were prepared in two biofluids (saline solution and artificial saliva), in four concentrations, and deposited as 5-µL droplets on a supporting plate. The angles of maximal degree of linear polarization (DLP) of light diffusely scattered from dry residues were determined using Mueller polarimetry from87 samples at 405 nm and 514 nm. A polarimetric camera was used for imaging several samples under 380-420 nm illumination at angles similar to those of maximal DLP. Per-pixel image analysis included quantification and combination of polarization feature descriptors in 475 samples. MAIN RESULTS The angles (from sample surface) of maximal DLP were 3° for 405 nm and 6° for 514 nm. Similar viral particles that differed only in the characteristic spike protein of the SARS-CoV-2, their corresponding negative controls, fluids, and the sample holder were discerned at 10-degree and 15-degree configurations. SIGNIFICANCE Polarimetric imaging in the visible spectrum may help improve fast, non-contact detection and identification of viral particles, and/or other microbes such as tuberculosis, in multiple dry fluid samples simultaneously, particularly when combined with other imaging modalities. Further analysis including realistic concentrations of real SARS-CoV-2 viral particles in relevant human fluids is required. Polarimetric imaging under visible light may contribute to a fast, cost-effective screening of SARS-CoV-2 and other pathogens when combined with other imaging modalities.
Collapse
Affiliation(s)
- Emilio Gomez-Gonzalez
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
- Institute of Biomedicine of Seville, Spain
| | - Olga Muñoz
- Cosmic Dust Laboratory, Instituto de Astrofísica de Andalucía, CSIC, Granada 18008, Spain
| | | | - Jesus Aceituno-Castro
- Cosmic Dust Laboratory, Instituto de Astrofísica de Andalucía, CSIC, Granada 18008, Spain
- Centro Astronomico Hispano Alemán, Almeria 04550, Spain
| | - Beatriz Fernandez-Muñoz
- Unidad de Producción y Reprogramación Celular, Red Andaluza de Diseño y Traslación de Terapias Avanzadas, Fundacion Publica Andaluza Progreso y Salud, Sevilla 41092, Spain
| | | | - Alejandro Barriga-Rivera
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
- School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Isabel Fernandez-Lizaranzu
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
- Institute of Biomedicine of Seville, Spain
| | - Francisco Javier Munoz-Gonzalez
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
| | | | - Desiree Requena-Lancharro
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
| | - Pedro Gil-Gamboa
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
| | - José Luis Ramos
- Cosmic Dust Laboratory, Instituto de Astrofísica de Andalucía, CSIC, Granada 18008, Spain
| | - Cristina Rosell-Valle
- Unidad de Producción y Reprogramación Celular, Red Andaluza de Diseño y Traslación de Terapias Avanzadas, Fundacion Publica Andaluza Progreso y Salud, Sevilla 41092, Spain
| | - Carmen Gomez-Gonzalez
- Service of Intensive Care, University Hospital 'Virgen del Rocio', Sevilla 41013, Spain
| | - Maria Martin-Lopez
- Unidad de Producción y Reprogramación Celular, Red Andaluza de Diseño y Traslación de Terapias Avanzadas, Fundacion Publica Andaluza Progreso y Salud, Sevilla 41092, Spain
| | - Maria Isabel Relimpio-Lopez
- Department of General Surgery, College of Medicine, Universidad de Sevilla, Seville 41009, Spain
- Department of Ophthalmology, University Hospital 'Virgen Macarena', Sevilla 41009, Spain
- OftaRed, Institute of Health 'Carlos III', Madrid 28029, Spain
| | - Manuel A Perales-Esteve
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
- Department of Electronic Engineering at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
| | - Antonio Puppo-Moreno
- Institute of Biomedicine of Seville, Spain
- Service of Intensive Care, University Hospital 'Virgen del Rocio', Sevilla 41013, Spain
| | - Francisco Jose Garcia-Cozar
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cadiz 11003, Spain
- Instituto de Investigación e Innovación Biomedica de Cádiz (INIBICA), Cadiz 11009, Spain
| | - Lucia Olvera-Collantes
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cadiz 11003, Spain
- Instituto de Investigación e Innovación Biomedica de Cádiz (INIBICA), Cadiz 11009, Spain
| | | | - Emilia Gomez
- Joint Research Centre, European Commission, Sevilla 41092, Spain
| | - Rosario Sanchez-Pernaute
- Unidad de Producción y Reprogramación Celular, Red Andaluza de Diseño y Traslación de Terapias Avanzadas, Fundacion Publica Andaluza Progreso y Salud, Sevilla 41092, Spain
| | | | - Javier Marquez-Rivas
- Group of Interdisciplinary Physics, Department of Applied Physics III at the ETSI Engineering School, Universidad de Sevilla, Seville 41092, Spain
- Institute of Biomedicine of Seville, Spain
- Service of Neurosurgery, University Hospital 'Virgen del Rocío', Sevilla 41013, Spain
| |
Collapse
|
30
|
Yin J, Zhang M, Tan Y, Guo Z, He H, Lan L, Cheng JX. Video-rate mid-infrared photothermal imaging by single-pulse photothermal detection per pixel. SCIENCE ADVANCES 2023; 9:eadg8814. [PMID: 37315131 DOI: 10.1126/sciadv.adg8814] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/09/2023] [Indexed: 06/16/2023]
Abstract
By optically sensing absorption-induced photothermal effect, mid-infrared (IR) photothermal (MIP) microscope enables super-resolution IR imaging of biological systems in water. However, the speed of current sample-scanning MIP system is limited to milliseconds per pixel, which is insufficient for capturing living dynamics. By detecting the transient photothermal signal induced by a single IR pulse through fast digitization, we report a laser-scanning MIP microscope that increases the imaging speed by three orders of magnitude. To realize single-pulse photothermal detection, we use synchronized galvo scanning of both mid-IR and probe beams to achieve an imaging line rate of more than 2 kilohertz. With video-rate speed, we observed the dynamics of various biomolecules in living organisms at multiple scales. Furthermore, by using hyperspectral imaging, we chemically dissected the layered ultrastructure of fungal cell wall. Last, with a uniform field of view more than 200 by 200 square micrometer, we mapped fat storage in free-moving Caenorhabditis elegans and live embryos.
Collapse
Affiliation(s)
- Jiaze Yin
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Meng Zhang
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Yuying Tan
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Zhongyue Guo
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
| | - Hongjian He
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Lu Lan
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
| | - Ji-Xin Cheng
- Department of Electrical & Computer Engineering, Boston University, Boston, MA 02215, USA
- Department of Biomedical Engineering, Boston University, Boston, MA 02215, USA
- Photonics Center, Boston University, Boston, MA 02215, USA
| |
Collapse
|
31
|
Toftul I, Fedorovich G, Kislov D, Frizyuk K, Koshelev K, Kivshar Y, Petrov M. Nonlinearity-Induced Optical Torque. PHYSICAL REVIEW LETTERS 2023; 130:243802. [PMID: 37390434 DOI: 10.1103/physrevlett.130.243802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 05/17/2023] [Indexed: 07/02/2023]
Abstract
Optically induced mechanical torque driving rotation of small objects requires the presence of absorption or breaking cylindrical symmetry of a scatterer. A spherical nonabsorbing particle cannot rotate due to the conservation of the angular momentum of light upon scattering. Here, we suggest a novel physical mechanism for the angular momentum transfer to nonabsorbing particles via nonlinear light scattering. The breaking of symmetry occurs at the microscopic level manifested in nonlinear negative optical torque due to the excitation of resonant states at the harmonic frequency with higher projection of angular momentum. The proposed physical mechanism can be verified with resonant dielectric nanostructures, and we suggest some specific realizations.
Collapse
Affiliation(s)
- Ivan Toftul
- Nonlinear Physics Center, Research School of Physics, Australia National University, Canberra ACT 2601, Australia
- School of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| | - Gleb Fedorovich
- School of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
- Department of Physics, ETH Zurich, Zurich 8093, Switzerland
| | - Denis Kislov
- School of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
- Riga Technical University, Institute of Telecommunications, Riga 1048, Latvia
- Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, Dolgoprudny 141700, Russia
| | - Kristina Frizyuk
- School of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| | - Kirill Koshelev
- Nonlinear Physics Center, Research School of Physics, Australia National University, Canberra ACT 2601, Australia
| | - Yuri Kivshar
- Nonlinear Physics Center, Research School of Physics, Australia National University, Canberra ACT 2601, Australia
| | - Mihail Petrov
- School of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| |
Collapse
|
32
|
He Y, Lopez-Rios R, Javid UA, Ling J, Li M, Xue S, Vahala K, Lin Q. High-speed tunable microwave-rate soliton microcomb. Nat Commun 2023; 14:3467. [PMID: 37308507 DOI: 10.1038/s41467-023-39229-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 05/30/2023] [Indexed: 06/14/2023] Open
Abstract
Soliton microcombs are a promising new approach for photonic-based microwave signal synthesis. To date, however, the tuning rate has been limited in microcombs. Here, we demonstrate the first microwave-rate soliton microcomb whose repetition rate can be tuned at a high speed. By integrating an electro-optic modulation element into a lithium niobate comb microresonator, a modulation bandwidth up to 75 MHz and a continuous frequency modulation rate up to 5.0 × 1014 Hz/s are achieved, several orders-of-magnitude faster than existing microcomb technology. The device offers a significant bandwidth of up to tens of gigahertz for locking the repetition rate to an external microwave reference, enabling both direct injection locking and feedback locking to the comb resonator itself without involving external modulation. These features are especially useful for disciplining an optical voltage-controlled oscillator to a long-term reference and the demonstrated fast repetition rate control is expected to have a profound impact on all applications of frequency combs.
Collapse
Affiliation(s)
- Yang He
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, 14627, USA
| | | | - Usman A Javid
- Institute of Optics, University of Rochester, Rochester, NY, 14627, USA
| | - Jingwei Ling
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, 14627, USA
| | - Mingxiao Li
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, 14627, USA
| | - Shixin Xue
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, 14627, USA
| | - Kerry Vahala
- T.J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, California, 91125, USA
| | - Qiang Lin
- Department of Electrical and Computer Engineering, University of Rochester, Rochester, NY, 14627, USA.
- Institute of Optics, University of Rochester, Rochester, NY, 14627, USA.
| |
Collapse
|
33
|
Tomoda M, Kubota A, Matsuda O, Sugawara Y, Wright OB. Time-domain Brillouin imaging of sound velocity and refractive index using automated angle scanning. PHOTOACOUSTICS 2023; 31:100486. [PMID: 37113270 PMCID: PMC10126909 DOI: 10.1016/j.pacs.2023.100486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/23/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
We present a picosecond optoacoustic technique for mapping both the longitudinal sound velocity v and the refractive index n in solids by automated measurement at multiple probe incidence angles in time-domain Brillouin scattering. Using a fused silica sample with a deposited titanium film as an optoacoustic transducer, we map v and n in the depth direction. Applications include the imaging of sound velocity and refractive index distributions in three dimensions in inhomogeneous samples such as biological cells.
Collapse
Affiliation(s)
- Motonobu Tomoda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Akihisa Kubota
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Osamu Matsuda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yoshihiro Sugawara
- Analysis Technology Center, FUJIFILM Corporation, Kanagawa 250-0193, Japan
| | - Oliver B. Wright
- Hokkaido University, Sapporo 060-0808, Japan
- Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, Osaka 565-0871, Japan
| |
Collapse
|
34
|
Fuentes-Domínguez R, Yao M, Hardiman W, La Cavera III S, Setchfield K, Pérez-Cota F, Smith RJ, Clark M. Parallel imaging with phonon microscopy using a multi-core fibre bundle detection. PHOTOACOUSTICS 2023; 31:100493. [PMID: 37180958 PMCID: PMC10172699 DOI: 10.1016/j.pacs.2023.100493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 05/16/2023]
Abstract
In this paper, we show a proof-of-concept method to parallelise phonon microscopy measurements for cell elasticity imaging by demonstrating a 3-fold increase in acquisition speed which is limited by current acquisition hardware. Phonon microscopy is based on time-resolved Brillouin scattering, which uses a pump-probe method with asynchronous optical sampling (ASOPS) to generate and detect coherent phonons. This enables access to the cell elasticity via the Brillouin frequency with sub-optical axial resolution. Although systems based on ASOPS are typically faster compared to the ones built with a mechanical delay line, they are still very slow to study real time changes at the cellular level. Additionally, the biocompatibility is reduced due to long light exposure and scanning time. Using a multi-core fibre bundle rather than a single channel for detection, we acquire 6 channels simultaneously allowing us to speed-up measurements, and open a way to scale-up this method.
Collapse
|
35
|
Dutta C, Maniappan S, Kumar J. Delayed luminescence guided enhanced circularly polarized emission in atomically precise copper nanoclusters. Chem Sci 2023; 14:5593-5601. [PMID: 37265730 PMCID: PMC10231326 DOI: 10.1039/d3sc00686g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/24/2023] [Indexed: 06/03/2023] Open
Abstract
Metal nanoclusters, owing to their intriguing optical properties, have captivated research interest over the years. Of special interest have been chiral nanoclusters that display optical activity in the visible region of the electromagnetic spectrum. While the ground state chiral properties of metal nanoclusters have been reasonably well studied, of late research focus has shifted attention to their excited state chiral investigations. Herein, we report the synthesis and chiral investigations of a pair of enantiomerically pure copper nanoclusters that exhibit intense optical activity, both in their ground and excited states. The synthesis of nanoclusters using l- and d-isomers of the chiral ligand led to the formation of metal clusters that displayed mirror image circular dichroism and circularly polarized luminescence signals. Structural validation using single crystal XRD, powder XRD and XPS in conjunction with chiroptical and computational analysis helped to develop a structure-property correlation that is unique to such clusters. Investigations on the mechanism of photoluminescence revealed that the system exhibits long excited state lifetimes. A combination of delayed luminescence and chirality resulted in circularly polarized delayed luminescence, a phenomenon that is rather uncommon to the field of metal clusters. The chiral emissive properties could be successfully demonstrated in free-standing polymeric films highlighting their potential for use in the field of data encryption, security tags and polarized light emitting devices. Moreover, the fundamental understanding of the mechanism of excited state chirality in copper clusters opens avenues for the exploration of similar effects in a variety of other clusters.
Collapse
Affiliation(s)
- Camelia Dutta
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati Tirupati - 517507 India
| | - Sonia Maniappan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati Tirupati - 517507 India
| | - Jatish Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati Tirupati - 517507 India
| |
Collapse
|
36
|
Chen C, Li X, Yang G, Chen X, Liu S, Guo Y, Li H. Computational hyperspectral devices based on quasi-random metasurface supercells. NANOSCALE 2023; 15:8854-8862. [PMID: 37114970 DOI: 10.1039/d3nr00884c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Computational hyperspectral devices that use artificial filters have shown promise as compact spectral devices. However, the current designs are restricted by limited types and geometric parameters of unit cells, resulting in a high cross-correlation between the transmission spectra. This limitation prevents the fulfillment of the requirement for compressed-sensing-based spectral reconstruction. To address this challenge, we proposed and simulated a novel design for computational hyperspectral devices based on quasi-random metasurface supercells. The size of the quasi-random metasurface supercell was extended above the wavelength, which enables the exploration of a larger variety of symmetrical supercell structures. Consequently, more quasi-random supercells with lower polarization sensitivity and their spectra with low cross-correlation were obtained. Devices for narrowband spectral reconstruction and broadband hyperspectral single-shot imaging were designed and fabricated. Combined with the genetic algorithm with compressed sensing, the narrowband spectral reconstruction device reconstructs the complex narrowband hyperspectral signal with 6 nm spectral resolution and ultralow errors. The broadband hyperspectral device reconstructs a broadband hyperspectral image (λ/λ ∼ 0.001) with a high average signal fidelity of 92%. This device has the potential to be integrated into a complementary metal-oxide-semiconductor (CMOS) chip for single-shot imaging.
Collapse
Affiliation(s)
- Cong Chen
- School of Biomedical Engineering (Suzhou), Division of Life Science and Medicine, University of Science and Technology of China, Suzhou 215163, China.
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Xiaoyin Li
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
| | - Gang Yang
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
- University of Chinese Academy of Sciences, School of Optoelectronics, Beijing 100049, China
| | - Xiaohu Chen
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Shoupeng Liu
- School of Biomedical Engineering (Suzhou), Division of Life Science and Medicine, University of Science and Technology of China, Suzhou 215163, China.
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| | - Yinghui Guo
- State Key Laboratory of Optical Technologies on Nano-Fabrication and Micro-Engineering, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China.
- University of Chinese Academy of Sciences, School of Optoelectronics, Beijing 100049, China
| | - Hui Li
- School of Biomedical Engineering (Suzhou), Division of Life Science and Medicine, University of Science and Technology of China, Suzhou 215163, China.
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China
| |
Collapse
|
37
|
Wang Z, Zhao T, Cai Y, Zhang J, Hao H, Liang Y, Wang S, Sun Y, Chen T, Bianco PR, Oh K, Lei M. Rapid, artifact-reduced, image reconstruction for super-resolution structured illumination microscopy. Innovation (N Y) 2023; 4:100425. [PMID: 37181226 PMCID: PMC10173768 DOI: 10.1016/j.xinn.2023.100425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/10/2023] [Indexed: 05/16/2023] Open
Abstract
Super-resolution structured illumination microscopy (SR-SIM) is finding increasing application in biomedical research due to its superior ability to visualize subcellular dynamics in living cells. However, during image reconstruction artifacts can be introduced and when coupled with time-consuming postprocessing procedures, limits this technique from becoming a routine imaging tool for biologists. To address these issues, an accelerated, artifact-reduced reconstruction algorithm termed joint space frequency reconstruction-based artifact reduction algorithm (JSFR-AR-SIM) was developed by integrating a high-speed reconstruction framework with a high-fidelity optimization approach designed to suppress the sidelobe artifact. Consequently, JSFR-AR-SIM produces high-quality, super-resolution images with minimal artifacts, and the reconstruction speed is increased. We anticipate this algorithm to facilitate SR-SIM becoming a routine tool in biomedical laboratories.
Collapse
Affiliation(s)
- Zhaojun Wang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
| | - Tianyu Zhao
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yanan Cai
- College of Science, Northwest A&F University, Yangling 712100, China
| | - Jingxiang Zhang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
| | - Huiwen Hao
- State Key Laboratory of Membrane Biology & Biomedical Pioneer Innovation Center (BIOPIC) & School of Life Sciences, Peking University, Beijing 100871, China
| | - Yansheng Liang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
| | - Shaowei Wang
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yujie Sun
- State Key Laboratory of Membrane Biology & Biomedical Pioneer Innovation Center (BIOPIC) & School of Life Sciences, Peking University, Beijing 100871, China
| | - Tongsheng Chen
- MOE Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Piero R. Bianco
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Nebraska Medical Center, Omaha, NE 68198-6025, USA
| | - Kwangsung Oh
- Department of Computer Science, College of Information Science & Technology, University of Nebraska Omaha, Omaha, NE 68182, USA
| | - Ming Lei
- MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi’an Jiaotong University, Xi’an 710049, China
- Corresponding author
| |
Collapse
|
38
|
Guo Z, Liu Z, Barbastathis G, Zhang Q, Glinsky ME, Alpert BK, Levine ZH. Noise-resilient deep learning for integrated circuit tomography. OPTICS EXPRESS 2023; 31:15355-15371. [PMID: 37157639 DOI: 10.1364/oe.486213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
X-ray tomography is a non-destructive imaging technique that reveals the interior of an object from its projections at different angles. Under sparse-view and low-photon sampling, regularization priors are required to retrieve a high-fidelity reconstruction. Recently, deep learning has been used in X-ray tomography. The prior learned from training data replaces the general-purpose priors in iterative algorithms, achieving high-quality reconstructions with a neural network. Previous studies typically assume the noise statistics of test data are acquired a priori from training data, leaving the network susceptible to a change in the noise characteristics under practical imaging conditions. In this work, we propose a noise-resilient deep-reconstruction algorithm and apply it to integrated circuit tomography. By training the network with regularized reconstructions from a conventional algorithm, the learned prior shows strong noise resilience without the need for additional training with noisy examples, and allows us to obtain acceptable reconstructions with fewer photons in test data. The advantages of our framework may further enable low-photon tomographic imaging where long acquisition times limit the ability to acquire a large training set.
Collapse
|
39
|
Lu J, Ginis V, Qiu CW, Capasso F. Polarization-Dependent Forces and Torques at Resonance in a Microfiber-Microcavity System. PHYSICAL REVIEW LETTERS 2023; 130:183601. [PMID: 37204895 DOI: 10.1103/physrevlett.130.183601] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/20/2023] [Indexed: 05/21/2023]
Abstract
Spin-orbit interactions in evanescent fields have recently attracted significant interest. In particular, the transfer of the Belinfante spin momentum perpendicular to the propagation direction generates polarization-dependent lateral forces on particles. However, it is still elusive as to how the polarization-dependent resonances of large particles synergize with the incident light's helicity and resultant lateral forces. Here, we investigate these polarization-dependent phenomena in a microfiber-microcavity system where whispering-gallery-mode resonances exist. This system allows for an intuitive understanding and unification of the polarization-dependent forces. Contrary to previous studies, the induced lateral forces at resonance are not proportional to the helicity of incident light. Instead, polarization-dependent coupling phases and resonance phases generate extra helicity contributions. We propose a generalized law for optical lateral forces and find the existence of optical lateral forces even when the helicity of incident light is zero. Our work provides new insights into these polarization-dependent phenomena and an opportunity to engineer polarization-controlled resonant optomechanical systems.
Collapse
Affiliation(s)
- Jinsheng Lu
- Harvard John A. Paulson School of Engineering and Applied Sciences, 9 Oxford Street, Cambridge, Massachusetts 02138, USA
| | - Vincent Ginis
- Harvard John A. Paulson School of Engineering and Applied Sciences, 9 Oxford Street, Cambridge, Massachusetts 02138, USA
- Data Lab and Applied Physics, Vrije Universiteit Brussel, 1050 Brussel, Belgium
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117583, Singapore
| | - Federico Capasso
- Harvard John A. Paulson School of Engineering and Applied Sciences, 9 Oxford Street, Cambridge, Massachusetts 02138, USA
| |
Collapse
|
40
|
Kaur R, Pensia L, Kumar R. Bragg degenerate model for fabrication of holographic waveguide-based near-eye displays. APPLIED OPTICS 2023; 62:3467-3476. [PMID: 37132848 DOI: 10.1364/ao.485971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The coupling efficiency of light beams is a crucial factor for waveguide displays. Generally, the light beam is not coupled with maximum efficiency in the holographic waveguide without employing a prism in the recording geometry. Use of prisms in recording geometry leads to restricting the propagation angle of the waveguide to a specific value only. The issue of efficient coupling of a light beam without using prisms could be overcome via Bragg degenerate configuration. In this work, the simplified expressions of the Bragg degenerate case are obtained for the realization of normally illuminated waveguide-based displays. Using this model, by tuning the parameters of recording geometry, a range of propagation angles can be produced for a fixed normal incidence of a playback beam. Numerical simulations and experimental investigations of the Bragg degenerate waveguides of different geometries are performed to validate the model. A Bragg degenerate playback beam is successfully coupled in four waveguides recorded with different geometries and yields good diffraction efficiency at normal incidence. The quality of transmitted images is characterized using the structural similarity index measure. The augmentation of a transmitted image in the real world is experimentally demonstrated through the fabricated holographic waveguide for near-eye display applications. Bragg degenerate configuration can provide flexibility in the angle of propagation while maintaining the same coupling efficiency achievable with a prism for holographic waveguide displays.
Collapse
|
41
|
Roh I, Goh SH, Meng Y, Kim JS, Han S, Xu Z, Lee HE, Kim Y, Bae SH. Applications of remote epitaxy and van der Waals epitaxy. NANO CONVERGENCE 2023; 10:20. [PMID: 37120780 PMCID: PMC10149550 DOI: 10.1186/s40580-023-00369-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 04/09/2023] [Indexed: 05/03/2023]
Abstract
Epitaxy technology produces high-quality material building blocks that underpin various fields of applications. However, fundamental limitations exist for conventional epitaxy, such as the lattice matching constraints that have greatly narrowed down the choices of available epitaxial material combinations. Recent emerging epitaxy techniques such as remote and van der Waals epitaxy have shown exciting perspectives to overcome these limitations and provide freestanding nanomembranes for massive novel applications. Here, we review the mechanism and fundamentals for van der Waals and remote epitaxy to produce freestanding nanomembranes. Key benefits that are exclusive to these two growth strategies are comprehensively summarized. A number of original applications have also been discussed, highlighting the advantages of these freestanding films-based designs. Finally, we discuss the current limitations with possible solutions and potential future directions towards nanomembranes-based advanced heterogeneous integration.
Collapse
Affiliation(s)
- Ilpyo Roh
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
- R&D CENTER, M.O.P Co., Ltd, Seoul, 07281, South Korea
| | - Seok Hyeon Goh
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, 54896, South Korea
| | - Yuan Meng
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
| | - Justin S Kim
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA
| | - Sangmoon Han
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA
| | - Zhihao Xu
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA
| | - Han Eol Lee
- Division of Advanced Materials Engineering, Jeonbuk National University, Jeonju, 54896, South Korea.
| | - Yeongin Kim
- Department of Electrical and Computer Engineering, University of Cincinnati, Cincinnati, OH, 45221, USA.
| | - Sang-Hoon Bae
- Mechanical Engineering & Materials Science, Washington University in St. Louis, Saint Louis, MO, 63105, USA.
- The Institution of Materials Science & Engineering, Washington University in St. Louis, Saint Louis, MO, 63130, USA.
| |
Collapse
|
42
|
Poria K, Lohan R, Bhatia S, Kumar A, Singh R, Deopa N, Punia R, Shahi JS, Rao AS. Lumino-structural properties of Dy 3+ activated Na 3Ba 2LaNb 10O 30 phosphors with enhanced internal quantum yield for w-LEDs. RSC Adv 2023; 13:11557-11568. [PMID: 37063722 PMCID: PMC10099766 DOI: 10.1039/d3ra01260c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/24/2023] [Indexed: 04/18/2023] Open
Abstract
With an intend to develop white light emitting phosphor, for w-LED application, a series of dysprosium (Dy3+) doped novel Na3Ba2LaNb10O30 phosphors were prepared using solid state reaction technique at 1300 °C. Their structural, morphological and vibrational spectroscopic analysis was performed. We illustrate the luminescence characteristics of the prepared phosphors for various Dy3+ ion doping concentration. The XRD analysis demonstrates that the prepared phosphors were in single phase, and of tetragonal tungsten bronze structure of the P4bm space group. The FE-SEM image reveals that the prepared phosphors contained irregular shaped both nano and micro particles. Under near-ultraviolet (n-UV) irradiation at 387 nm, the photoluminescence (PL) emission spectra shows three characteristic bands at 481 nm (blue), 575 nm (yellow) and 666 nm (red). Obtained optimized Dy3+ ion concentration for the prepared sample is 7.0 mol%, beyond which the concentration quenching begins. Bonding between Dy-O is covalent in nature as confirmed by bonding parameters and the Dexter theory revealed that the energy transfer among Dy3+ ions is dipole-diploe interaction. CIE chromaticity coordinates, CCT and color purity confirms the formation of warm white light emitting phosphors. Lifetime analysis demonstrates the longer decay time in the phosphors. The Internal Quantum Yield (IQE) and brightness (B) for the optimised phosphor is calculated as 45.35% and 11.41% respectively, which makes it a suitable phosphor for w-LED.
Collapse
Affiliation(s)
- Kanishk Poria
- Department of Physics, Panjab University Chandigarh India +91-9815612645
| | - Ravina Lohan
- Department of Physics, Chaudhary Ranbir Singh University Jind India +91-8860551723
| | - Sanjana Bhatia
- Department of Physics, Panjab University Chandigarh India +91-9815612645
| | - Amit Kumar
- Department of Physics, Chaudhary Ranbir Singh University Jind India +91-8860551723
| | - Rajwinder Singh
- Department of Physics, Panjab University Chandigarh India +91-9815612645
| | - Nisha Deopa
- Department of Physics, Chaudhary Ranbir Singh University Jind India +91-8860551723
| | - Rajesh Punia
- Department of Physics, Maharshi Dayanand University Rohtak India
| | | | - A S Rao
- Department of Applied Physics, Delhi Technological University New Delhi India
| |
Collapse
|
43
|
de Jong D, Karst J, Ludescher D, Floess M, Moell S, Dirnberger K, Hentschel M, Ludwigs S, Braun PV, Giessen H. Electrically switchable metallic polymer metasurface device with gel polymer electrolyte. NANOPHOTONICS 2023; 12:1397-1404. [PMID: 37114093 PMCID: PMC10125172 DOI: 10.1515/nanoph-2022-0654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 01/08/2023] [Indexed: 06/11/2023]
Abstract
We present an electrically switchable, compact metasurface device based on the metallic polymer PEDOT:PSS in combination with a gel polymer electrolyte. Applying square-wave voltages, we can reversibly switch the PEDOT:PSS from dielectric to metallic. Using this concept, we demonstrate a compact, standalone, and CMOS compatible metadevice. It allows for electrically controlled ON and OFF switching of plasmonic resonances in the 2-3 µm wavelength range, as well as electrically controlled beam switching at angles up to 10°. Furthermore, switching frequencies of up to 10 Hz, with oxidation times as fast as 42 ms and reduction times of 57 ms, are demonstrated. Our work provides the basis towards solid state switchable metasurfaces, ultimately leading to submicrometer-pixel spatial light modulators and hence switchable holographic devices.
Collapse
Affiliation(s)
- Derek de Jong
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
- Department of Materials Science and Engineering, Materials Research Laboratory, and Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL61801, USA
| | - Julian Karst
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| | - Dominik Ludescher
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| | - Moritz Floess
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| | - Sophia Moell
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| | - Klaus Dirnberger
- IPOC-Functional Polymers, Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569Stuttgart, Germany
| | - Mario Hentschel
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| | - Sabine Ludwigs
- IPOC-Functional Polymers, Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569Stuttgart, Germany
| | - Paul V. Braun
- Department of Materials Science and Engineering, Materials Research Laboratory, and Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, IL61801, USA
| | - Harald Giessen
- 4th Physics Institute and Research Center ScoPE, University of Stuttgart, Pfaffenwaldring 57, 70569Stuttgart, Germany
| |
Collapse
|
44
|
Tomoda M, Toda A, Matsuda O, Gusev VE, Wright OB. Sound velocity mapping from GHz Brillouin oscillations in transparent materials by optical incidence from the side of the sample. PHOTOACOUSTICS 2023; 30:100459. [PMID: 36852340 PMCID: PMC9958038 DOI: 10.1016/j.pacs.2023.100459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/24/2023] [Accepted: 02/05/2023] [Indexed: 05/14/2023]
Abstract
Time-domain Brillouin scattering (TDBS) is an all-optical experimental technique for investigating transparent materials based on laser picosecond ultrasonics. Its application ranges from imaging thin-films, polycrystalline materials and biological cells to physical properties such as residual stress, temperature gradients and nonlinear coherent nano-acoustic pulses. When the sample refractive index is spatially uniform and known in TDBS, analysis by windowed Fourier transforms allows one to depth-profile the sound velocity. Here, we present a new method in TDBS for extracting sound velocity without a knowledge of the refractive index, by use of probe light obliquely incident on a side face-as opposed to the usual top face-of the sample. We demonstrate this method using a fused silica sample with a titanium transducer film and map the sound velocity in the depth direction. In future, it should be possible to map the sound velocity distribution in three dimensions in inhomogeneous samples, with applications to the imaging of biological cells.
Collapse
Affiliation(s)
- Motonobu Tomoda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
- Corresponding author.
| | - Akira Toda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Osamu Matsuda
- Faculty of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Vitalyi E. Gusev
- Laboratoire d′Acoustique de l′Université du Mans (LAUM), Institut d′Acoustique-Graduate School (IA-GS), CNRS, Le Mans Université, Le Mans 72085, France
| | - Oliver B. Wright
- Hokkaido University, Sapporo 060-0808, Japan
- Graduate School of Engineering, Osaka University, Yamadaoka 2-1, Suita, 565-0871 Osaka, Japan
| |
Collapse
|
45
|
Xing F, Ji G, Li Z, Zhong W, Wang F, Liu Z, Xin W, Tian J. Preparation, properties and applications of two-dimensional superlattices. MATERIALS HORIZONS 2023; 10:722-744. [PMID: 36562255 DOI: 10.1039/d2mh01206e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
As a combination concept of a 2D material and a superlattice, two-dimensional superlattices (2DSs) have attracted increasing attention recently. The natural advantages of 2D materials in their properties, dimension, diversity and compatibility, and their gradually improved technologies for preparation and device fabrication serve as solid foundations for the development of 2DSs. Compared with the existing 2D materials and even their heterostructures, 2DSs relate to more materials and elaborate architectures, leading to novel systems with more degrees of freedom to modulate material properties at the nanoscale. Here, three typical types of 2DSs, including the component, strain-induced and moiré superlattices, are reviewed. The preparation methods, properties and state-of-the-art applications of each type are summarized. An outlook of the challenges and future developments is also presented. We hope that this work can provide a reference for the development of 2DS-related research.
Collapse
Affiliation(s)
- Fei Xing
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, 255049, China
| | - Guangmin Ji
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, 255049, China
| | - Zongwen Li
- School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, 255049, China
| | - Weiheng Zhong
- Key Laboratory of UV-Emitting Materials and Technology, Ministry of Education, Northeast Normal University, Changchun, 130024, China.
| | - Feiyue Wang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275, China
| | - Zhibo Liu
- Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics Institute and School of Physics, Nankai University, Tianjin, 300071, China.
| | - Wei Xin
- Key Laboratory of UV-Emitting Materials and Technology, Ministry of Education, Northeast Normal University, Changchun, 130024, China.
| | - Jianguo Tian
- Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Teda Applied Physics Institute and School of Physics, Nankai University, Tianjin, 300071, China.
| |
Collapse
|
46
|
Yin J, Zhang M, Tan Y, Guo Z, He H, Lan L, Cheng JX. Video-rate Mid-infrared Photothermal Imaging by Single Pulse Photothermal Detection per Pixel. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.27.530116. [PMID: 36909493 PMCID: PMC10002684 DOI: 10.1101/2023.02.27.530116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
By optically sensing the mid-infrared absorption induced photothermal effect, midinfrared photothermal (MIP) microscope enables super-resolution IR imaging and scrutinizing of biological systems in an aqueous environment. However, the speed of current lock-in based sample-scanning MIP system is limited to 1.0 millisecond or longer per pixel, which is insufficient for capturing dynamics inside living systems. Here, we report a single pulse laserscanning MIP microscope that dramatically increases the imaging speed by three orders of magnitude. We harness a lock-in free demodulation scheme which uses high-speed digitization to resolve single IR pulse induced contrast at nanosecond time scale. To realize single pulse photothermal detection at each pixel, we employ two sets of galvo mirrors for synchronized scanning of mid-infrared and probe beams to achieve an imaging line rate over 2 kHz. With video-rate imaging capability, we observed two types of distinct dynamics of lipids in living cells. Furthermore, by hyperspectral imaging, we chemically dissected a single cell wall at nanometer scale. Finally, with a uniform field of view over 200 by 200 μm 2 and 2 Hz frame rate, we mapped fat storage in free-moving C. elegans and live embryos.
Collapse
|
47
|
Vala D, Mičica M, Cvejn D, Postava K. Broadband Mueller ellipsometer as an all-in-one tool for spectral and temporal analysis of mutarotation kinetics. RSC Adv 2023; 13:6582-6592. [PMID: 36860536 PMCID: PMC9969180 DOI: 10.1039/d3ra00101f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 02/03/2023] [Indexed: 03/02/2023] Open
Abstract
Spectroscopic Mueller matrix ellipsometry is becoming increasingly routine across physical branches of science, even outside optics. The highly sensitive tracking of the polarization-related physical properties offers a reliable and non-destructive analysis of virtually any sample at hand. If coupled with a physical model, it is impeccable in performance and irreplaceable in versatility. Nonetheless, this method is rarely adopted interdisciplinarily, and when it is, it often plays a supporting role, which does not take benefit of its full potential. To bridge this gap, we present Mueller matrix ellipsometry in the context of chiroptical spectroscopy. In this work, we utilize a commercial broadband Mueller ellipsometer to analyze the optical activity of a saccharides solution. We verify the correctness of the method in the first place by studying the well-known rotatory power of glucose, fructose, and sucrose. By employing a physically meaningful dispersion model, we obtain 2π-unwrapped absolute specific rotations. Besides that, we demonstrate the capability of tracing the glucose mutarotation kinetics from just one set of measurements. Coupling the Mueller matrix ellipsometry with the proposed dispersion model ultimately leads to the precisely determined mutarotation rate constants and spectrally and temporally resolved gyration tensor of individual glucose anomers. In this view, Mueller matrix ellipsometry may stand as an offbeat yet equal technique to those considered classical chiroptical spectroscopy techniques, which may help open new opportunities for broader polarimetric applications in biomedicine and chemistry.
Collapse
Affiliation(s)
- Daniel Vala
- IT4Innovations, National Supercomputing Center, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
- Faculty of Materials Science and Technology, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
| | - Martin Mičica
- IT4Innovations, National Supercomputing Center, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
- Laboratoire de Physique de l'École Normale Supérieure, CNRS UMR 8023 24 rue Lhomond 75005 Paris France
| | - Daniel Cvejn
- ENET Centre, CEET, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
| | - Kamil Postava
- IT4Innovations, National Supercomputing Center, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
- Faculty of Materials Science and Technology, VSB - Technical University of Ostrava 17. listopadu 2172/15 708 00 Ostrava-Poruba Czech Republic
| |
Collapse
|
48
|
Xu H, Xu J, Jiang M, Liu M, Tang K, Kan C, Shi D. Exciton-polariton light-emitting diode based on a single ZnO superlattice microwire heterojunction with performance enhanced by Rh nanostructures. Phys Chem Chem Phys 2023; 25:5836-5848. [PMID: 36745472 DOI: 10.1039/d2cp05446a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
One-dimensional (1D) wirelike superlattice micro/nanostructures have received considerable attention for potential applications due to their versatility and capability for modulating optical and electrical characteristics. In this study, 1D superlattice microwires (MWs), which are made of undoped ZnO and Ga-doped ZnO with periodic and alternating crystalline layers (ZnO/ZnO:Ga), were synthesized individually. Under optical excitation, a series of resonance peaks in the photoluminescence spectrum can be ascribed to polariton emission, which originates from the coupling interaction of the 1D photonic crystal and confined excitons along the wire direction. Using a p-type GaN layer as the hole transport layer, a kind of waveguide light source based on an individual ZnO/ZnO:Ga superlattice MW was proposed and constructed. By analysing the spatially resolved electroluminescence spectra, the observed multipeak was ascribed to exciton-polariton emission with a vacuum Rabi splitting of about 275 meV. Cladding with Rh nanostructures gives rise to appropriate ultraviolet plasmons, and the Rabi splitting energy of our device was enhanced up to 413 meV. The exciton-polariton properties were further examined using angle-resolved electroluminescence measurements. Therefore, individual superlattice MWs can act as optical microresonators to achieve photon-exciton coupling with a large Rabi splitting energy. The experimental results indicate that an individual ZnO/ZnO:Ga superlattice MW can be generally used in developing exciton-polariton luminescence/lasing light sources, particularly for constructing low-threshold/thresholdless lasers toward pragmatic applications.
Collapse
Affiliation(s)
- Haiying Xu
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China. .,College of Mathematics and Physics, Nanjing Institute of Technology, Nanjing, 211167, China
| | - Juan Xu
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| | - Mingming Jiang
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| | - Maosheng Liu
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| | - Kai Tang
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| | - Caixia Kan
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| | - Daning Shi
- College of Physics, MIIT Key Laboratory of Aerospace Information Materials and Physics, Key Laboratory for Intelligent Nano Materials and Devices, Nanjing University of Aeronautics and Astronautics, No. 29 Jiangjun Road, Nanjing 211106, China.
| |
Collapse
|
49
|
K S, K M, Bankapur A, George SD. Energy transfer between optically trapped single ligand-free upconversion nanoparticle and dye. NANOTECHNOLOGY 2023; 34:175702. [PMID: 36706452 DOI: 10.1088/1361-6528/acb69f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/27/2023] [Indexed: 06/18/2023]
Abstract
The quenching in luminescence emission of an optically trapped ligand-free hydrophilic NaYF4:Yb, Er upconversion nanoparticle (UCNP) as a function of rose Bengal dye molecule is investigated here. The removal of oleate capping of the as-prepared UCNPs was achieved via acid treatment and characterized via FTIR and Raman spectroscopic techniques. Further, the capping removed hydrophilic single UCNP is optically trapped and the emission studies were carried out as a function of excitation laser power. Compared to the studies using the bulk solution, the single UCNP luminescence spectrum exhibited additional spectral lines. The excitation laser power-dependent studies using the bulk solution yield a slope value between 1 and 2 for Blue, Green 1, Green 2, and Red emission and thus indicate that upconversion is a two-photon upconversion process. On the other hand, in the case of laser power-dependent studies on an optically trapped single-particle study, Blue and Green 1 yield a slope value of less than 1 whereas Green 2 and Red emission gave a slope value between 1 and 2. The energy transfer studies between an optically trapped ligand-free single UCNP and the rose Bengal dye show a concentration-dependent quenching in the emission of Green emissions and illustrate the potential of developing sensor platforms.
Collapse
Affiliation(s)
- Suresh K
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Monisha K
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Aseefhali Bankapur
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sajan D George
- Department of Atomic and Molecular Physics, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
- Centre for Applied Nanosciences (CAN), Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| |
Collapse
|
50
|
Li J, Yang T, Lang J, Liu H, Gao M. Functionalized MoS 2: circular economy SERS substrate for label-free detection of bilirubin in clinical diagnosis. Mikrochim Acta 2023; 190:83. [PMID: 36746801 DOI: 10.1007/s00604-023-05668-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 01/19/2023] [Indexed: 02/08/2023]
Abstract
A one-pot hydrothermal synthesis of Fe-doped MoS2 nanoflowers (Fe-MoS2 NFs) has been developed as a surface-enhanced Raman spectroscopy (SERS) substrate. The Fe-MoS2 NFs display high reproducibility, stability, and recyclability, which is beneficial for the development of the sustainable ecological environment. The SERS substrate provides a high enhancement factor of 105, which can be ascribed to the inducing defects by doping Fe that can improve the charge transfer between probe molecules and MoS2. The Fe-MoS2 NFs have been used to detect bilirubin in serum. The Fe-MoS2 NF SERS substrate exhibits a linear detection range from 10-3 to 10-9 M with a low limit of detection (LOD) of 10-8 M. The substrate displays an excellent selectivity to bilirubin in the presence of other potentially interfering molecules (dextrose and phosphate). These results provide a novel concept to synthesize ultra-sensitive SERS substrates and open up a wide range of possibilities for new applications of MoS2 in clinical diagnosis.
Collapse
Affiliation(s)
- Jia Li
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Changchun, 130103, People's Republic of China
| | - Tingru Yang
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Changchun, 130103, People's Republic of China.,National Demonstration Centre for Experimental Physics Education, Jilin Normal University, Siping, 136000, People's Republic of China.,Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, People's Republic of China
| | - Jihui Lang
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Changchun, 130103, People's Republic of China.,National Demonstration Centre for Experimental Physics Education, Jilin Normal University, Siping, 136000, People's Republic of China.,Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, People's Republic of China
| | - Huilian Liu
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Changchun, 130103, People's Republic of China. .,National Demonstration Centre for Experimental Physics Education, Jilin Normal University, Siping, 136000, People's Republic of China. .,Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, People's Republic of China.
| | - Ming Gao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials, Jilin Normal University, Changchun, 130103, People's Republic of China. .,National Demonstration Centre for Experimental Physics Education, Jilin Normal University, Siping, 136000, People's Republic of China. .,Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun, 130103, People's Republic of China.
| |
Collapse
|