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Fu Y, Liu Z, Yue S, Zhang K, Wang R, Zhang Z. Optical Second Harmonic Generation of Low-Dimensional Semiconductor Materials. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:662. [PMID: 38668156 PMCID: PMC11054873 DOI: 10.3390/nano14080662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 04/02/2024] [Accepted: 04/07/2024] [Indexed: 04/29/2024]
Abstract
In recent years, the phenomenon of optical second harmonic generation (SHG) has attracted significant attention as a pivotal nonlinear optical effect in research. Notably, in low-dimensional materials (LDMs), SHG detection has become an instrumental tool for elucidating nonlinear optical properties due to their pronounced second-order susceptibility and distinct electronic structure. This review offers an exhaustive overview of the generation process and experimental configurations for SHG in such materials. It underscores the latest advancements in harnessing SHG as a sensitive probe for investigating the nonlinear optical attributes of these materials, with a particular focus on its pivotal role in unveiling electronic structures, bandgap characteristics, and crystal symmetry. By analyzing SHG signals, researchers can glean invaluable insights into the microscopic properties of these materials. Furthermore, this paper delves into the applications of optical SHG in imaging and time-resolved experiments. Finally, future directions and challenges toward the improvement in the NLO in LDMs are discussed to provide an outlook in this rapidly developing field, offering crucial perspectives for the design and optimization of pertinent devices.
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Affiliation(s)
- Yue Fu
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
| | - Zhengyan Liu
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
- School of Integrated Circuits, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
| | - Song Yue
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
- School of Integrated Circuits, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
| | - Kunpeng Zhang
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
| | - Ran Wang
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
- School of Integrated Circuits, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
| | - Zichen Zhang
- Microelectronics Instruments and Equipment R&D Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China; (Y.F.); (Z.L.); (S.Y.); (K.Z.)
- School of Integrated Circuits, University of Chinese Academy of Sciences, No. 19(A) Yuquan Road, Beijing 100049, China
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Capitaine A, Fajri ML, Sciacca B. Pushing the Limits of Capillary Assembly for the Arbitrary Positioning of Sub-50nm Nanocubes in Printable Plasmonic Surfaces. SMALL METHODS 2024; 8:e2300373. [PMID: 37391271 DOI: 10.1002/smtd.202300373] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 05/15/2023] [Indexed: 07/02/2023]
Abstract
The fabrication of high quality nanophotonic surfaces for integration in optoelectronic devices remains a challenge because of the complexity and cost of top-down nanofabrication strategies. Combining colloidal synthesis with templated self-assembly emerged as an appealing low-cost solution. However, it still faces several obstacles before integration in devices can become a reality. This is mostly due to the difficulty in assembling small nanoparticles (<50 nm) in complex nanopatterns with a high yield. In this study, a reliable methodology is proposed to fabricate printable nanopatterns with an aspect ratio varying from 1 to 10 and a lateral resolution of 30 nm via nanocube assembly and epitaxy. Investigating templated assembly via capillary forces, a new regime was identified that was used to assemble 30-40 nm nanocubes in a patterned polydimethylsiloxane template with a high yield for both Au and Ag with multiple particles per trap. This new method relies on the generation and control of an accumulation zone at the contact line that is thin as opposed to dense, displaying higher versatility. This is in contrast with conventional wisdom, identifying a dense accumulation zone as a requirement for high-yield assembly. In addition, different formulations are proposed that can be used for the colloidal dispersion, showing that the standard water-surfactant solutions can be replaced by surfactant-free ethanol solutions, with good assembly yield. This allows to minimize the presence of surfactants that can affect electronic properties. Finally, it is shown that the obtained nanocube arrays can be transformed into continuous monocrystalline nanopatterns via nanocube epitaxy at near ambient temperature, and transferred to different substrates via contact printing. This approach opens new doors to the templated assembly of small colloids and could find potential applications in various optoelectronic devices ranging from solar cells to light-emitting diodes and displays.
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Affiliation(s)
- Anna Capitaine
- Aix-Marseille Univ, CNRS, CINaM, Campus de Luminy, Marseille, 13009, France
| | - Muhammad L Fajri
- Aix-Marseille Univ, CNRS, CINaM, Campus de Luminy, Marseille, 13009, France
| | - Beniamino Sciacca
- Aix-Marseille Univ, CNRS, CINaM, Campus de Luminy, Marseille, 13009, France
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3
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Zhang C, Lin F, Zhang Y, Yang H, Lin D, He J, Liao C, Weng X, Liu L, Wang Y, Yu B, Qu J. Super-Resolution Second-Harmonic Generation Imaging with Multifocal Structured Illumination Microscopy. NANO LETTERS 2023; 23:7975-7982. [PMID: 37642385 DOI: 10.1021/acs.nanolett.3c01903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Second-harmonic generation (SHG) is a noninvasive imaging technique that enables the exploration of physiological structures without the use of an exogenous label. However, traditional SHG imaging is limited by optical diffraction, which restricts the spatial resolution. To break this limitation, we developed a novel approach called multifocal structured illumination microscopy-SHG (MSIM-SHG). By combination of SHG with MSIM, SHG-based super-resolution imaging of material molecules can be achieved, and this SHG super-resolution imaging has a wide range of applications for biological tissues and cells. MSIM-SHG achieved a lateral full width at half-maximum (fwhm) of 147 ± 13 nm and an axial fwhm of 493 ± 47 nm by imaging zinc oxide (ZnO) particles. Furthermore, MSIM-SHG was utilized to quantify collagen fiber alignment in various tissues such as the ovary, muscle, heart, kidney, and cartilage, demonstrating its feasibility for identifying collagen characteristics. MSIM-SHG has potential as a powerful tool for clinical diagnosis and biological research.
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Affiliation(s)
- Chenshuang Zhang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Fangrui Lin
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Yong Zhang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Haozhi Yang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Danying Lin
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Jun He
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Changrui Liao
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Xiaoyu Weng
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Liwei Liu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Yiping Wang
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Bin Yu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Junle Qu
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, People's Republic of China
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Ali RF, Busche JA, Kamal S, Masiello DJ, Gates BD. Near-field enhancement of optical second harmonic generation in hybrid gold-lithium niobate nanostructures. LIGHT, SCIENCE & APPLICATIONS 2023; 12:99. [PMID: 37185262 PMCID: PMC10130160 DOI: 10.1038/s41377-023-01092-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 02/03/2023] [Accepted: 02/04/2023] [Indexed: 05/17/2023]
Abstract
Nanophotonics research has focused recently on the ability of nonlinear optical processes to mediate and transform optical signals in a myriad of novel devices, including optical modulators, transducers, color filters, photodetectors, photon sources, and ultrafast optical switches. The inherent weakness of optical nonlinearities at smaller scales has, however, hindered the realization of efficient miniaturized devices, and strategies for enhancing both device efficiencies and synthesis throughput via nanoengineering remain limited. Here, we demonstrate a novel mechanism by which second harmonic generation, a prototypical nonlinear optical phenomenon, from individual lithium niobate particles can be significantly enhanced through nonradiative coupling to the localized surface plasmon resonances of embedded gold nanoparticles. A joint experimental and theoretical investigation of single mesoporous lithium niobate particles coated with a dispersed layer of ~10 nm diameter gold nanoparticles shows that a ~32-fold enhancement of second harmonic generation can be achieved without introducing finely tailored radiative nanoantennas to mediate photon transfer to or from the nonlinear material. This work highlights the limitations of current strategies for enhancing nonlinear optical phenomena and proposes a route through which a new class of subwavelength nonlinear optical platforms can be designed to maximize nonlinear efficiencies through near-field energy exchange.
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Affiliation(s)
- Rana Faryad Ali
- Department of Chemistry and 4D LABS, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - Jacob A Busche
- Department of Chemistry, University of Washington, Seattle, WA, 98195, USA
| | - Saeid Kamal
- Department of Chemistry and 4D LABS, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada
| | - David J Masiello
- Department of Chemistry, University of Washington, Seattle, WA, 98195, USA
| | - Byron D Gates
- Department of Chemistry and 4D LABS, Simon Fraser University, Burnaby, BC, V5A 1S6, Canada.
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5
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Fu P, Li Y. Pump-guided nonlinear film for phase conjugation. OPTICS EXPRESS 2022; 30:42376-42384. [PMID: 36366692 DOI: 10.1364/oe.473516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/19/2022] [Indexed: 06/16/2023]
Abstract
It is known that phase conjugation technique is achieved by the nonlinearity of materials, and widely adopted in various applications, such as high-resolution imaging, signal amplification, and target detecting. Here, we have proposed a field-enhancement method for the degenerate four wave mixing (FWM) for phase conjugation purpose. In this method, a thin film waveguide with nonlinear property is utilized to confine and guide the pumps, achieving the enhanced FWM within a flexible structure. Compared to existing degenerate FWM methods, three merits are introduced by the proposed pump-guided nonlinear film. First, the pump is confined and guided in the nonlinear waveguide, and the pump energy is concentrated to achieve high power level of the phase-conjugated signals. Second, less pump energy leaks out from the thin film, with less interference to the phase-conjugated signals. The last one is that pump-guided film can be engineered into flexible shapes for different practical applications. Based on these advantages, the phase conjugation property is numerically verified for high-resolution image reconstruction, even with damping of waveguide or in the presence of the metallic particles and the dielectric blocks.
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6
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Pashina O, Frizyuk K, Zograf G, Petrov M. Thermo-optical reshaping of second-harmonic emission from dimer all-dielectric nanoresonators. OPTICS LETTERS 2022; 47:1992-1995. [PMID: 35427319 DOI: 10.1364/ol.444348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
All-dielectric nanophotonics offers a wide range of possibilities for thermally induced light manipulation at the nanoscale. High quality resonances allow for efficient light-to-heat conversion supported by various temperature detection approaches based on thermally sensitive intrinsic optical responses. In this work, we study theoretically a phenomenon of the photothermal reshaping of the radiation pattern of second-harmonic generation (SHG) that occurs in resonant all-dielectric systems. In the suggested geometry, a near-IR pulsed laser is used for SHG while a continuous wave visible laser simultaneously heats the structure. The thermo-optical switching of the resonant optical states in the nanostructures governs the reconfiguration of the emission pattern, without significant loss in the magnitude of the SHG. We believe, that our findings will pave the way for subwavelength-size near-IR thermally switchable nonlinear optical devices.
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7
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Ma Q, Pan C, Xue Y, Fang Z, Zhang S, Wu B, Wu E. Plasmon Enhanced Second Harmonic Generation from ZnO Nanofilms on Vertical Au Nanorod Arrays. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2597. [PMID: 34685038 PMCID: PMC8539005 DOI: 10.3390/nano11102597] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/18/2021] [Accepted: 09/30/2021] [Indexed: 11/16/2022]
Abstract
Vertically aligned gold nanorod arrays have attracted much attention for their fascinating optical properties. Different from longitudinal surface plasmon wavelength (LSPW) and edge-to-edge spacing of gold nanorods, the role of gold nanorod diameter in plasmonic enhancement ability of vertical gold nanorod arrays has rarely been explored. In this work, we selected gold nanorods with similar LSPW but two different diameters (22 and 41 nm), the optical properties of which are dominated by absorption and scattering cross sections, respectively. The vertically aligned arrays of these gold nanorods formed by evaporation self-assembly are coupled with nonlinear ZnO nanocrystal films spin-coated on their surfaces. It was found that the gold nanorod array with a larger diameter can enhance the second harmonic generation (SHG) of ZnO nanofilm by a factor of 27.0, while it is about 7.3 for the smaller gold nanorod array. Theoretical simulations indicate that such stronger enhancement of the larger vertical gold nanorod array compared with the smaller one is due to its stronger scattering ability and greater extent of near-field enhancement at SHG fundamental wavelength. Our work shows that the diameter of gold nanorods is also an important factor to be considered in realizing strong plasmon enhancement of vertically aligned gold nanorod arrays.
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Affiliation(s)
- Qiang Ma
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - Chengda Pan
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - Yingxian Xue
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - Zhiyun Fang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - Shiyu Zhang
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - Botao Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
| | - E Wu
- State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200241, China; (Q.M.); (C.P.); (Y.X.); (Z.F.); (S.Z.); (E.W.)
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
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8
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Giant Second Harmonic Generation Enhancement by Ag Nanoparticles Compactly Distributed on Hexagonal Arrangements. NANOMATERIALS 2021; 11:nano11092394. [PMID: 34578708 PMCID: PMC8468191 DOI: 10.3390/nano11092394] [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: 07/28/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 11/17/2022]
Abstract
The association of plasmonic nanostructures with nonlinear dielectric systems has been shown to provide useful platforms for boosting frequency conversion processes at metal-dielectric interfaces. Here, we report on an efficient route for engineering light-matter interaction processes in hybrid plasmonic-χ(2) dielectric systems to enhance second harmonic generation (SHG) processes confined in small spatial regions. By means of ferroelectric lithography, we have fabricated scalable micrometric arrangements of interacting silver nanoparticles compactly distributed on hexagonal regions. The fabricated polygonal microstructures support both localized and extended plasmonic modes, providing large spatial regions of field enhancement at the optical frequencies involved in the SHG process. We experimentally demonstrate that the resonant excitation of the plasmonic modes supported by the Ag nanoparticle-filled hexagons in the near infrared region produces an extraordinary 104-fold enhancement of the blue second harmonic intensity generated in the surface of a LiNbO3 crystal. The results open new perspectives for the design of efficient hybrid plasmonic frequency converters in miniaturized devices.
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Gurbatov SO, Modin E, Puzikov V, Tonkaev P, Storozhenko D, Sergeev A, Mintcheva N, Yamaguchi S, Tarasenka NN, Chuvilin A, Makarov S, Kulinich SA, Kuchmizhak AA. Black Au-Decorated TiO 2 Produced via Laser Ablation in Liquid. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6522-6531. [PMID: 33502160 DOI: 10.1021/acsami.0c20463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The rational combination of plasmonic and all-dielectric concepts within hybrid nanomaterials provides a promising route toward devices with ultimate performance and extended modalities. Spectral matching of plasmonic and Mie-type resonances for such nanostructures can only be achieved for their dissimilar characteristic sizes, thus making the resulting hybrid nanostructure geometry complex for practical realization and large-scale replication. Here, we produced amorphous TiO2 nanospheres decorated and doped with Au nanoclusters via single-step nanosecond-laser irradiation of commercially available TiO2 nanopowders dispersed in aqueous HAuCl4. Fabricated hybrids demonstrate remarkable light-absorbing properties (averaged value ≈96%) in the visible and near-IR spectral range mediated by bandgap reduction of the laser-processed amorphous TiO2 as well as plasmon resonances of the decorating Au nanoclusters. The findings are supported by optical spectroscopy, electron energy loss spectroscopy, transmission electron microscopy, and electromagnetic modeling. Light-absorbing and plasmonic properties of the produced hybrids were implemented to demonstrate catalytically passive SERS biosensor for identification of analytes at trace concentrations and solar steam generator that permitted to increase water evaporation rate by 2.5 times compared with that of pure water under identical 1 sun irradiation conditions.
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Affiliation(s)
- Stanislav O Gurbatov
- Far Eastern Federal University, Vladivostok 690922, Russia
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia
| | - Evgeny Modin
- CIC nanoGUNE BRTA, E-20018 Donostia - San Sebastian, Spain
| | | | | | - Dmitriy Storozhenko
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia
| | - Aleksandr Sergeev
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia
| | - Neli Mintcheva
- Department of Chemistry, University of Mining and Geology, 1700 Sofia, Bulgaria
- Research Institute of Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - Shigeru Yamaguchi
- Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | | | - Andrey Chuvilin
- CIC nanoGUNE BRTA, E-20018 Donostia - San Sebastian, Spain
- IKERBASQUE, Basque Foundation for Science, E-48013 Bilbao, Spain
| | | | - Sergei A Kulinich
- Far Eastern Federal University, Vladivostok 690922, Russia
- Research Institute of Science and Technology, Tokai University, Hiratsuka, Kanagawa 259-1292, Japan
| | - Aleksandr A Kuchmizhak
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Science, Vladivostok 690041, Russia
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Lee JB, Walker H, Li Y, Nam TW, Rakovich A, Sapienza R, Jung YS, Nam YS, Maier SA, Cortés E. Template Dissolution Interfacial Patterning of Single Colloids for Nanoelectrochemistry and Nanosensing. ACS NANO 2020; 14:17693-17703. [PMID: 33270433 DOI: 10.1021/acsnano.0c09319] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Deterministic positioning and assembly of colloidal nanoparticles (NPs) onto substrates is a core requirement and a promising alternative to top-down lithography to create functional nanostructures and nanodevices with intriguing optical, electrical, and catalytic features. Capillary-assisted particle assembly (CAPA) has emerged as an attractive technique to this end, as it allows controlled and selective assembly of a wide variety of NPs onto predefined topographical templates using capillary forces. One critical issue with CAPA, however, lies in its final printing step, where high printing yields are possible only with the use of an adhesive polymer film. To address this problem, we have developed a template dissolution interfacial patterning (TDIP) technique to assemble and print single colloidal AuNP arrays onto various dielectric and conductive substrates in the absence of any adhesion layer, with printing yields higher than 98%. The TDIP approach grants direct access to the interface between the AuNP and the target surface, enabling the use of colloidal AuNPs as building blocks for practical applications. The versatile applicability of TDIP is demonstrated by the creation of direct electrical junctions for electro- and photoelectrochemistry and nanoparticle-on-mirror geometries for single-particle molecular sensing.
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Affiliation(s)
- Joong Bum Lee
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Harriet Walker
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
| | - Yi Li
- School of Microelectronics, MOE Engineering Research Center of Integrated Circuits for Next Generation Communications, Southern University of Science and Technology, Shenzhen, 518055 Guangdong China
| | - Tae Won Nam
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | | | - Riccardo Sapienza
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
| | - Yeon Sik Jung
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yoon Sung Nam
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- KAIST Institute for Nanocentury, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Stefan A Maier
- The Blackett Laboratory, Department of Physics, Imperial College London, London SW7 2AZ, United Kingdom
- Faculty of Physics, Ludwig-Maximilians-Universität München, 80539 München, Germany
| | - Emiliano Cortés
- Faculty of Physics, Ludwig-Maximilians-Universität München, 80539 München, Germany
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11
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Li Z, Corbett B, Gocalinska A, Pelucchi E, Chen W, Ryan KM, Khan P, Silien C, Xu H, Liu N. Direct visualization of phase-matched efficient second harmonic and broadband sum frequency generation in hybrid plasmonic nanostructures. LIGHT, SCIENCE & APPLICATIONS 2020; 9:180. [PMID: 33110598 PMCID: PMC7582155 DOI: 10.1038/s41377-020-00414-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 09/09/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
Second harmonic generation and sum frequency generation (SHG and SFG) provide effective means to realize coherent light at desired frequencies when lasing is not easily achievable. They have found applications from sensing to quantum optics and are of particular interest for integrated photonics at communication wavelengths. Decreasing the footprints of nonlinear components while maintaining their high up-conversion efficiency remains a challenge in the miniaturization of integrated photonics. Here we explore lithographically defined AlGaInP nano(micro)structures/Al2O3/Ag as a versatile platform to achieve efficient SHG/SFG in both waveguide and resonant cavity configurations in both narrow- and broadband infrared (IR) wavelength regimes (1300-1600 nm). The effective excitation of highly confined hybrid plasmonic modes at fundamental wavelengths allows efficient SHG/SFG to be achieved in a waveguide of a cross-section of 113 nm × 250 nm, with a mode area on the deep subwavelength scale (λ 2/135) at fundamental wavelengths. Remarkably, we demonstrate direct visualization of SHG/SFG phase-matching evolution in the waveguides. This together with mode analysis highlights the origin of the improved SHG/SFG efficiency. We also demonstrate strongly enhanced SFG with a broadband IR source by exploiting multiple coherent SFG processes on 1 µm diameter AlGaInP disks/Al2O3/Ag with a conversion efficiency of 14.8% MW-1 which is five times the SHG value using the narrowband IR source. In both configurations, the hybrid plasmonic structures exhibit >1000 enhancement in the nonlinear conversion efficiency compared to their photonic counterparts. Our results manifest the potential of developing such nanoscale hybrid plasmonic devices for state-of-the-art on-chip nonlinear optics applications.
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Affiliation(s)
- Zhe Li
- Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland
- The School of Physics and Technology, Institute for Advanced Studies and Center for Nanoscience and Nanotechnology, Wuhan University, Wuhan, 430072 China
| | - Brian Corbett
- Tyndall National Institute, University College Cork, Cork, Ireland
| | | | | | - Wen Chen
- Institute of Physics, École Polytechnique Fédérale de Lausanne (EPFL), CH, 1015 Lausanne, Switzerland
| | - Kevin. M. Ryan
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, Ireland
| | - Pritam Khan
- Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland
| | - Christophe Silien
- Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland
| | - Hongxing Xu
- The School of Physics and Technology, Institute for Advanced Studies and Center for Nanoscience and Nanotechnology, Wuhan University, Wuhan, 430072 China
| | - Ning Liu
- Department of Physics and Bernal Institute, University of Limerick, Limerick, Ireland
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12
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Manipulation Technique for Precise Transfer of Single Perovskite Nanoparticles. NANOMATERIALS 2020; 10:nano10071306. [PMID: 32635393 PMCID: PMC7408089 DOI: 10.3390/nano10071306] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 11/16/2022]
Abstract
In this article, we present the pick-and-place technique for the manipulation of single nanoparticles on non-conductive substrates using a tungsten tip irradiated by a focused electron beam from a scanning electron microscope. The developed technique allowed us to perform the precise transfer of single BaTiO3 nanoparticles from one substrate to another in order to carry out measurements of elastic light scattering as well as second harmonic generation. Also, we demonstrate a fabricated structure made by finely tuning the position of a BaTiO3 nanoparticle on top of a dielectric nanowaveguide deposited on a glass substrate. The presented technique is based on the electrostatic interaction between the sharp tungsten tip charged by the electron beam and the nanoscale object. A mechanism for nanoparticle transfer to a non-conductive substrate is proposed and the forces involved in the manipulation process are evaluated. The presented technique can be widely utilized for the fabrication of nanoscale structures on optically transparent non-conductive substrates, which presents a wide range of applications for nanophotonics.
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13
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Larin AO, Nominé A, Ageev EI, Ghanbaja J, Kolotova LN, Starikov SV, Bruyère S, Belmonte T, Makarov SV, Zuev DA. Plasmonic nanosponges filled with silicon for enhanced white light emission. NANOSCALE 2020; 12:1013-1021. [PMID: 31844859 DOI: 10.1039/c9nr08952g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Plasmonic nanosponges are a powerful platform for various nanophotonic applications owing to extremely high local field enhancement in metallic nanopores. The filling of the nanopores with high-refractive index semiconductors (e.g. Si, Ge, GaP, etc.) opens up opportunities for the enhancement of nonlinear effects in these materials. However, this task remains challenging due to the lack of knowledge on the integration process of metal and high-index semiconductor components in such nanoobjects. Here, we investigate metal-dielectric nanoparticles fabricated from bilayer Si/Au films by the laser printing technique via a combination of theoretical and experimental methods. We reveal that these hybrid nanoparticles represent the Au sponge-like nanostructure filled with Si nanocrystallites. We also demonstrate that the Au net provides strong near-field enhancement in the Si grains increasing the white light photoluminescence in the hybrid nanostructures compared to uniform Si nanoparticles. These results pave the way for engineering the internal structure of the sponge-like hybrid nanoparticles possessing white light luminescence and control of their optical properties on demand.
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Affiliation(s)
- A O Larin
- Department of Nanophotonics and Metamatarials, ITMO University, 49 Kronverkskii pr., Saint Petersburg 197101, Russia.
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14
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Ha M, Kim JH, You M, Li Q, Fan C, Nam JM. Multicomponent Plasmonic Nanoparticles: From Heterostructured Nanoparticles to Colloidal Composite Nanostructures. Chem Rev 2019; 119:12208-12278. [PMID: 31794202 DOI: 10.1021/acs.chemrev.9b00234] [Citation(s) in RCA: 166] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plasmonic nanostructures possessing unique and versatile optoelectronic properties have been vastly investigated over the past decade. However, the full potential of plasmonic nanostructure has not yet been fully exploited, particularly with single-component homogeneous structures with monotonic properties, and the addition of new components for making multicomponent nanoparticles may lead to new-yet-unexpected or improved properties. Here we define the term "multi-component nanoparticles" as hybrid structures composed of two or more condensed nanoscale domains with distinctive material compositions, shapes, or sizes. We reviewed and discussed the designing principles and synthetic strategies to efficiently combine multiple components to form hybrid nanoparticles with a new or improved plasmonic functionality. In particular, it has been quite challenging to precisely synthesize widely diverse multicomponent plasmonic structures, limiting realization of the full potential of plasmonic heterostructures. To address this challenge, several synthetic approaches have been reported to form a variety of different multicomponent plasmonic nanoparticles, mainly based on heterogeneous nucleation, atomic replacements, adsorption on supports, and biomolecule-mediated assemblies. In addition, the unique and synergistic features of multicomponent plasmonic nanoparticles, such as combination of pristine material properties, finely tuned plasmon resonance and coupling, enhanced light-matter interactions, geometry-induced polarization, and plasmon-induced energy and charge transfer across the heterointerface, were reported. In this review, we comprehensively summarize the latest advances on state-of-art synthetic strategies, unique properties, and promising applications of multicomponent plasmonic nanoparticles. These plasmonic nanoparticles including heterostructured nanoparticles and composite nanostructures are prepared by direct synthesis and physical force- or biomolecule-mediated assembly, which hold tremendous potential for plasmon-mediated energy transfer, magnetic plasmonics, metamolecules, and nanobiotechnology.
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Affiliation(s)
- Minji Ha
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Jae-Ho Kim
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Myunghwa You
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
| | - Qian Li
- School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Jwa-Min Nam
- Department of Chemistry , Seoul National University , Seoul 08826 , South Korea
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15
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Liu SD, Yue P, Zhu MQ, Wen J, Lei D. Restoring the silenced surface second-harmonic generation in split-ring resonators by magnetic and electric mode matching. OPTICS EXPRESS 2019; 27:26377-26391. [PMID: 31674521 DOI: 10.1364/oe.27.026377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 08/07/2019] [Indexed: 06/10/2023]
Abstract
Surface second-harmonic generation (SHG) in plasmonic metal nanostructures provides a promising approach to design compact and ultrafast nonlinear nanophotonics devices. However, typical plasmonic nanostructures, such as those with tiny gaps that provide strong near-field-amplified nonlinear sources, often suffer from the cancellation of nonlinear fields in the gaps, which results in the so-called silenced SHG and consequently attenuates the overall nonlinear conversion efficiency. In this study, we propose and demonstrate that the silenced SHG in a gold split-ring resonator can be effectively restored by carefully tailoring its gap geometry to avoid the cancellation of nonlinear fields in the gap and simultaneously achieve both spatial and frequency mode matching between the magnetic and the electric dipolar resonances. As a result, the effective nonlinear sources in the gap can be dramatically amplified and the surface second-harmonic emissions can be efficiently coupled out, leading to an SHG intensity enhancement of 7 times compared to a conventional split-ring resonator. The overall SHG conversion efficiency can thus be enlarged to about 1.49 × 10-8 in the near-infrared excitation region. Importantly, the restored surface second-harmonic emission exhibits the scattering characteristics of an ideal electric dipole, which can be very useful for nonlinear far-field manipulation such as beam steering and holograms.
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16
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Sahu SP, Mahigir A, Chidester B, Veronis G, Gartia MR. Ultrasensitive Three-Dimensional Orientation Imaging of Single Molecules on Plasmonic Nanohole Arrays Using Second Harmonic Generation. NANO LETTERS 2019; 19:6192-6202. [PMID: 31387355 DOI: 10.1021/acs.nanolett.9b02239] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Recently, fluorescence-based super-resolution techniques such as stimulated emission depletion (STED) and stochastic optical reconstruction microscopy (STORM) have been developed to achieve near molecular-scale resolution. However, such a super-resolution technique for nonlinear label-free microscopy based on second harmonic generation (SHG) is lacking. Since SHG is label-free and does not involve real-energy level transitions, fluorescence-based super-resolution techniques such as STED cannot be applied to improve the resolution. In addition, due to the coherent and non-isotropic emission nature of SHG, single-molecule localization techniques based on isotropic emission of fluorescent molecule such as STORM will not be appropriate. Single molecule SHG microscopy is largely hindered due to the very weak nonlinear optical scattering cross sections of SHG scattering processes. Thus, enhancing SHG using plasmonic nanostructures and nanoantennas has recently gained much attention owing to the potential of various nanoscale geometries to tightly confine electromagnetic fields into small volumes. This confinement provides substantial enhancement of electromagnetic field in nanoscale regions of interest, which can significantly boost the nonlinear signal produced by molecules located in the plasmonic hotspots. However, to date, plasmon-enhanced SHG has been primarily applied for the measurement of bulk properties of the materials/molecules, and single molecule SHG imaging along with its orientation information has not been realized yet. Herein, we achieved simultaneous visualization and three-dimensional (3D) orientation imaging of individual rhodamine 6G (R6G) molecules in the presence of plasmonic silver nanohole arrays. SHG and two-photon fluorescence microscopy experiments together with finite-difference time-domain (FDTD) simulations revealed a ∼106-fold nonlinear enhancement factor at the hot spots on the plasmonic silver nanohole substrate, enabling detection of single molecules using SHG. The position and 3D orientation of R6G molecules were determined using the template matching algorithm by comparing the experimental data with the calculated dipole emission images. These findings could enable SHG-based single molecule detection and orientation imaging of molecules which could lead to a wide range of applications from nanophotonics to super-resolution SHG imaging of biological cells and tissues.
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Affiliation(s)
- Sushant P Sahu
- Department of Mechanical and Industrial Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Amirreza Mahigir
- School of Electrical Engineering and Computer Science , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
- Center for Computation and Technology , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Benjamin Chidester
- Department of Computational Biology, School of Computer Science , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Georgios Veronis
- School of Electrical Engineering and Computer Science , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
- Center for Computation and Technology , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
| | - Manas Ranjan Gartia
- Department of Mechanical and Industrial Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States
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17
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Yang JH, Yu MW, Chen KP. Absorption avoided resonance crossing of hybridization of silicon nanoparticles and gold nanoantennas. Sci Rep 2019; 9:11778. [PMID: 31409844 PMCID: PMC6692372 DOI: 10.1038/s41598-019-48135-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 07/29/2019] [Indexed: 11/09/2022] Open
Abstract
The near-field coupling between a high-refractive-index nanoparticle and gold nanoantennas is investigated theoretically. The absorption enhancement and also avoided resonance crossing in the absorption cross section spectra were observed with the hybridization system due to the coupling between the localized surface plasmon resonance of the gold nanoantennas and the magnetic dipole resonance of the silicon nanoparticle. By controlling the nanoparticle size or the separation distance, the near-field coupling can be tuned from the weak to the strong regime.
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Affiliation(s)
- Jhen-Hong Yang
- Institute of Photonic System, College of Photonics, National Chiao Tung University, Tainan, Taiwan, ROC
| | - Min-Wen Yu
- Institute of Lighting and Energy Photonics, College of Photonics, National Chiao Tung University, Tainan, Taiwan, ROC
| | - Kuo-Ping Chen
- Institute of Imaging and Biomedical Photonics, College of Photonics, National Chiao Tung University, Tainan, Taiwan, ROC.
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18
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O Ramírez M, Molina P, Gómez-Tornero A, Hernández-Pinilla D, Sánchez-García L, Carretero-Palacios S, Bausá LE. Hybrid Plasmonic-Ferroelectric Architectures for Lasing and SHG Processes at the Nanoscale. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901428. [PMID: 31243833 DOI: 10.1002/adma.201901428] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/16/2019] [Indexed: 06/09/2023]
Abstract
Coherent light sources providing sub-wavelength confined modes are in ever more demand to face new challenges in a variety of disciplines. Scalability and cost-effective production of these systems are also highly desired. The use of ferroelectrics in functional optical platforms, on which plasmonic arrangements can be formed, is revealed as a simple and powerful method to develop coherent light sources with improved and novel functionalities at the nanoscale. Two types of sources with sub-diffraction spatial confinement and improved performances are presented: i) plasmon-assisted solid-state nanolasers based on the interaction between metallic nanostructures and optically active rare earth doped ferroelectric crystals and ii) nonlinear radiation sources based on quadratic frequency mixing processes that are enhanced by means of localized surface plasmon (LSP) resonances. The mechanisms responsible for the intensification of the radiation-matter interaction processes by LSP resonances are discussed in each case. The challenges, potential applications, and future perspectives of the field are highlighted.
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Affiliation(s)
- Mariola O Ramírez
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Pablo Molina
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Alejandro Gómez-Tornero
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - David Hernández-Pinilla
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Laura Sánchez-García
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Sol Carretero-Palacios
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Luisa E Bausá
- Departamento Física de Materiales, Instituto de Materiales Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, 28049, Madrid, Spain
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19
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Song Q, Zuo M, Schönherr H. Reconfigurable Microcube Assemblies at the Liquid/Air Interface: The Impact of Surface Tension on Orientation and Capillary-Force-Interaction-Driven Assembly. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:7791-7797. [PMID: 31122021 DOI: 10.1021/acs.langmuir.9b01104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The systematic investigation of the dependence of the orientation and capillary interaction of hydrophobized polystyrene microcubes at the liquid/air interface on the surface tension of the aqueous subphase is reported. By decreasing the subphase surface tension, the preferential orientation of the cubes was observed to change independent of the surfactant type from the vertex up to the edge up and finally to the face up. Concomitantly, the structure of the aggregates obtained by cube assembly was observed to change from a close-packed hexagonal to tilted linear and finally to flat plate. In particular, the preferential orientation of the cubes was virtually independent of the surfactant charge at a constant surface tension. In addition, reconfigurable microcube assemblies at the liquid/air interface, which respond to the surface tension of the subphase, were observed for the first time. The dynamic reconfigurability of preformed microcube aggregates induced by adding surfactant to the subphase may open new pathways to dynamic assemblies at liquid/air interfaces, which may be interesting, e.g., for sensing applications.
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Affiliation(s)
- Qimeng Song
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology , University of Siegen , Adolf-Reichwein-Str. 2 , 57076 Siegen , Germany
| | - Mengdi Zuo
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology , University of Siegen , Adolf-Reichwein-Str. 2 , 57076 Siegen , Germany
| | - Holger Schönherr
- Physical Chemistry I and Research Center of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology , University of Siegen , Adolf-Reichwein-Str. 2 , 57076 Siegen , Germany
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20
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Zhang Y, Yue P, Liu JY, Geng W, Bai YT, Liu SD. Ideal magnetic dipole resonances with metal-dielectric-metal hybridized nanodisks. OPTICS EXPRESS 2019; 27:16143-16155. [PMID: 31163799 DOI: 10.1364/oe.27.016143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/09/2019] [Indexed: 06/09/2023]
Abstract
Magnetic resonances generated with nonmagnetic nanostructures have been widely used to design various functional nanophotonic devices, and it is important to realize pure magnetic dipole scattering for the unambiguous study of magnetic light-matter interactions. However, the magnetic responses often spectrally overlapping with other multipoles, which is the main obstacle to achieve ideal magnetic dipole resonances. This study proposes and theoretically demonstrates that an ideal magnetic dipole resonance can be excited with metal-dielectric-metal hybridized nanodisks. It is shown that although the generated magnetic dipole scattering around the bonding resonance of the hybridized nanodisk is spectrally overlapping with strong electric dipole and electric quadrupole contributions, an almost perfect current loop can be generated by adjusting the geometry parameters and the refractive index of the dielectric layer, thereby leading to the suppressing of the overlapping multipoles and the formation of an ideal magnetic dipole scattering. What's more important is that both electric and magnetic near-fields are enhanced simultaneously with the increasing of the refractive index of the dielectric layer, which makes the hybridized nanodisk a promising platform for enhanced magnetic light-matter interactions.
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21
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Renaut C, Lang L, Frizyuk K, Timofeeva M, Komissarenko FE, Mukhin IS, Smirnova D, Timpu F, Petrov M, Kivshar Y, Grange R. Reshaping the Second-Order Polar Response of Hybrid Metal-Dielectric Nanodimers. NANO LETTERS 2019; 19:877-884. [PMID: 30605602 DOI: 10.1021/acs.nanolett.8b04089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We combine the field confinement of plasmonics with the flexibility of multiple Mie resonances by bottom-up assembly of hybrid metal-dielectric nanodimers. We investigate the electromagnetic coupling between nanoparticles in heterodimers consisting of gold and barium titanate (BaTiO3 or BTO) nanoparticles through nonlinear second-harmonic spectroscopy and polarimetry. The overlap of the localized surface plasmon resonant dipole mode of the gold nanoparticle with the dipole and higher-order Mie resonant modes in the BTO nanoparticle lead to the formation of hybridized modes in the visible spectral range. We employ the pick-and-place technique to construct the hybrid nanodimers with controlled diameters by positioning the nanoparticles of different types next to each other under a scanning electron microscope. Through linear scattering spectroscopy, we observe the formation of hybrid modes in the nanodimers. We show that the modes can be directly accessed by measuring the dependence of the second-harmonic generation (SHG) signal on the polarization and wavelength of the pump. We reveal both experimentally and theoretically that the hybridization of plasmonic and Mie-resonant modes leads to a strong reshaping of the SHG polarization dependence in the nanodimers, which depends on the pump wavelength. We compare the SHG signal of each hybrid nanodimer with the SHG signal of single BTO nanoparticles to estimate the enhancement factor due to the resonant mode coupling within the nanodimers. We report up to 2 orders of magnitude for the SHG signal enhancement compared with isolated BTO nanoparticles.
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Affiliation(s)
- Claude Renaut
- Optical Nanomaterial Group, Institute for Quantum Electronics , ETH Zurich , 8093 Zurich , Switzerland
| | - Lukas Lang
- Optical Nanomaterial Group, Institute for Quantum Electronics , ETH Zurich , 8093 Zurich , Switzerland
| | - Kristina Frizyuk
- Department of Nanophotonics and Metamaterials , ITMO University , Saint Petersburg 197101 , Russia
| | - Maria Timofeeva
- Optical Nanomaterial Group, Institute for Quantum Electronics , ETH Zurich , 8093 Zurich , Switzerland
| | - Filipp E Komissarenko
- Department of Nanophotonics and Metamaterials , ITMO University , Saint Petersburg 197101 , Russia
| | - Ivan S Mukhin
- Department of Nanophotonics and Metamaterials , ITMO University , Saint Petersburg 197101 , Russia
| | - Daria Smirnova
- Nonlinear Physics Center , Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Flavia Timpu
- Optical Nanomaterial Group, Institute for Quantum Electronics , ETH Zurich , 8093 Zurich , Switzerland
| | - Mihail Petrov
- Department of Nanophotonics and Metamaterials , ITMO University , Saint Petersburg 197101 , Russia
| | - Yuri Kivshar
- Nonlinear Physics Center , Australian National University , Canberra , Australian Capital Territory 2601 , Australia
| | - Rachel Grange
- Optical Nanomaterial Group, Institute for Quantum Electronics , ETH Zurich , 8093 Zurich , Switzerland
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22
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Hooper DC, Kuppe C, Wang D, Wang W, Guan J, Odom TW, Valev VK. Second Harmonic Spectroscopy of Surface Lattice Resonances. NANO LETTERS 2019; 19:165-172. [PMID: 30525669 DOI: 10.1021/acs.nanolett.8b03574] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Because of their large figures of merit, surface lattice resonances (SLRs) in metal nanoparticle arrays are very promising for chemical and biomolecular sensing in both liquid and gas media. SLRs are sensitive to refractive index changes both near the surface of the nanoparticles (surface sensitivity) and in the volume between them (bulk sensitivity). Because of its intrinsic surface-sensitivity and a power law dependence on electric fields, second harmonic generation (SHG) spectroscopy can improve upon both the surface and volume sensitivities of SLRs. In this report on SHG spectroscopy of plasmonic nanoparticles, we show that the SHG signal is greatly increased (up to 450 times) by the SLRs. We also demonstrate very narrow resonances in SHG intensity (∼5 nm fwhm). We illustrate how the SHG resonances are highly sensitive to SLRs by varying the fundamental wavelength, angle of incidence, nanoparticle material, and lattice constant of the arrays. Finally, we identify an SHG resonance (10 nm fwhm) that is electric dipole forbidden and can be attributed to higher-order multipoles, enhanced by the strong near-fields of SLRs. Our results open up new and very promising avenues for chemical and biomolecular sensing based on SHG spectroscopy of SLRs.
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Affiliation(s)
- David C Hooper
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
| | - Christian Kuppe
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
| | | | | | | | | | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials and Centre for Nanoscience and Nanotechnology, Department of Physics , University of Bath , Claverton Down , Bath BA2 4JY , U.K
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23
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Guo D, Zheng X, Wang X, Li H, Li K, Li Z, Song Y. Formation of Multicomponent Size‐Sorted Assembly Patterns by Tunable Templated Dewetting. Angew Chem Int Ed Engl 2018; 57:16126-16130. [DOI: 10.1002/anie.201810728] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 10/11/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Dan Guo
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Xu Zheng
- State Key Laboratory of Nonlinear Mechanics, Institute of MechanicsChinese Academy of Sciences Beijing 100190 P. R. China
| | - Xiaohe Wang
- State Key Laboratory of Nonlinear Mechanics, Institute of MechanicsChinese Academy of Sciences Beijing 100190 P. R. China
| | - Huizeng Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Kaixuan Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Zheng Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Yanlin Song
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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24
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Guo D, Zheng X, Wang X, Li H, Li K, Li Z, Song Y. Formation of Multicomponent Size‐Sorted Assembly Patterns by Tunable Templated Dewetting. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810728] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Dan Guo
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Xu Zheng
- State Key Laboratory of Nonlinear Mechanics, Institute of MechanicsChinese Academy of Sciences Beijing 100190 P. R. China
| | - Xiaohe Wang
- State Key Laboratory of Nonlinear Mechanics, Institute of MechanicsChinese Academy of Sciences Beijing 100190 P. R. China
| | - Huizeng Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Kaixuan Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Zheng Li
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
| | - Yanlin Song
- Key Laboratory of Green PrintingInstitute of ChemistryChinese Academy of Sciences Beijing 100190 P. R. China
- Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyBeijing National Laboratory for Molecular Sciences Beijing 100190 P. R. China
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25
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Yuan C, Li X, Semin S, Feng Y, Rasing T, Xu J. Chiral Lead Halide Perovskite Nanowires for Second-Order Nonlinear Optics. NANO LETTERS 2018; 18:5411-5417. [PMID: 30102548 DOI: 10.1021/acs.nanolett.8b01616] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Hybrid organic/inorganic lead halide perovskites (LHPs) have recently emerged as extremely promising photonic materials. However, the exploration of their optical nonlinearities has been mainly focused on the third- and higher-order nonlinear optical (NLO) effects. Strong second-order NLO responses are hardly expected from ordinary LHPs due to their intrinsic centrosymmetric structures, but are highly desirable for advancing their applications in the next generation integrated photonic circuits. Here we demonstrate the fabrication of a novel noncentrosymmetric LHP material by introducing chiral amines as the organic component. The nanowires grown from this new LHP material crystallize in a noncentrosymmetric P1 space group and demonstrate highly efficient second harmonic generation (SHG) with high polarization ratios and chiroptical NLO effects. Such a chiral perovskite skeleton could provide a new platform for future engineering of optoelectronic functionalities of hybrid perovskite materials.
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Affiliation(s)
- Chunqing Yuan
- School of Chemical Engineering and Technology , Tianjin University , Yaguan Road 135 , Tianjin 300350 , P.R. China
| | - Xinyue Li
- School of Chemical Engineering and Technology , Tianjin University , Yaguan Road 135 , Tianjin 300350 , P.R. China
- Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands
| | - Sergey Semin
- Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands
| | - Yaqing Feng
- School of Chemical Engineering and Technology , Tianjin University , Yaguan Road 135 , Tianjin 300350 , P.R. China
| | - Theo Rasing
- Institute for Molecules and Materials (IMM) , Radboud University , Heyendaalseweg 135 , 6525AJ Nijmegen , The Netherlands
| | - Jialiang Xu
- School of Chemical Engineering and Technology , Tianjin University , Yaguan Road 135 , Tianjin 300350 , P.R. China
- School of Materials Science and Engineering , Nankai University , Tongyan Road 38 , Tianjin 300350 , P.R. China
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26
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Gili VF, Ghirardini L, Rocco D, Marino G, Favero I, Roland I, Pellegrini G, Duò L, Finazzi M, Carletti L, Locatelli A, Lemaître A, Neshev D, De Angelis C, Leo G, Celebrano M. Metal-dielectric hybrid nanoantennas for efficient frequency conversion at the anapole mode. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:2306-2314. [PMID: 30202699 PMCID: PMC6122063 DOI: 10.3762/bjnano.9.215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 07/31/2018] [Indexed: 05/26/2023]
Abstract
Background: Dielectric nanoantennas have recently emerged as an alternative solution to plasmonics for nonlinear light manipulation at the nanoscale, thanks to the magnetic and electric resonances, the strong nonlinearities, and the low ohmic losses characterizing high refractive-index materials in the visible/near-infrared (NIR) region of the spectrum. In this frame, AlGaAs nanoantennas demonstrated to be extremely efficient sources of second harmonic radiation. In particular, the nonlinear polarization of an optical system pumped at the anapole mode can be potentially boosted, due to both the strong dip in the scattering spectrum and the near-field enhancement, which are characteristic of this mode. Plasmonic nanostructures, on the other hand, remain the most promising solution to achieve strong local field confinement, especially in the NIR, where metals such as gold display relatively low losses. Results: We present a nonlinear hybrid antenna based on an AlGaAs nanopillar surrounded by a gold ring, which merges in a single platform the strong field confinement typically produced by plasmonic antennas with the high nonlinearity and low loss characteristics of dielectric nanoantennas. This platform allows enhancing the coupling of light to the nanopillar at coincidence with the anapole mode, hence boosting both second- and third-harmonic generation conversion efficiencies. More than one order of magnitude enhancement factors are measured for both processes with respect to the isolated structure. Conclusion: The present results reveal the possibility to achieve tuneable metamixers and higher resolution in nonlinear sensing and spectroscopy, by means of improved both pump coupling and emission efficiency due to the excitation of the anapole mode enhanced by the plasmonic nanoantenna.
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Affiliation(s)
- Valerio F Gili
- Matériaux et Phénomènes Quantiques, Université Paris Diderot - Sorbonne Paris Cité, CNRS UMR 7162, 10 rue A. Domon et L. Duquet, 75013 Paris, France
| | - Lavinia Ghirardini
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy
| | - Davide Rocco
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Giuseppe Marino
- Matériaux et Phénomènes Quantiques, Université Paris Diderot - Sorbonne Paris Cité, CNRS UMR 7162, 10 rue A. Domon et L. Duquet, 75013 Paris, France
| | - Ivan Favero
- Matériaux et Phénomènes Quantiques, Université Paris Diderot - Sorbonne Paris Cité, CNRS UMR 7162, 10 rue A. Domon et L. Duquet, 75013 Paris, France
| | - Iännis Roland
- Matériaux et Phénomènes Quantiques, Université Paris Diderot - Sorbonne Paris Cité, CNRS UMR 7162, 10 rue A. Domon et L. Duquet, 75013 Paris, France
| | - Giovanni Pellegrini
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy
| | - Lamberto Duò
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy
| | - Marco Finazzi
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy
| | - Luca Carletti
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Andrea Locatelli
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Aristide Lemaître
- Centre de Nanosciences et de Nanotechnologies, CNRS-UMR9001, Route de Nozay, 91460 Marcoussis, France
| | - Dragomir Neshev
- Nonlinear Physics Centre, Research School of Physics and Engineering, Australian National University, 2601 ACT Canberra, Australia
| | - Costantino De Angelis
- Department of Information Engineering, University of Brescia, Via Branze 38, 25123 Brescia, Italy
| | - Giuseppe Leo
- Matériaux et Phénomènes Quantiques, Université Paris Diderot - Sorbonne Paris Cité, CNRS UMR 7162, 10 rue A. Domon et L. Duquet, 75013 Paris, France
| | - Michele Celebrano
- Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy
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27
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Galanty M, Shavit O, Weissman A, Aharon H, Gachet D, Segal E, Salomon A. Second harmonic generation hotspot on a centrosymmetric smooth silver surface. LIGHT, SCIENCE & APPLICATIONS 2018; 7:49. [PMID: 30839636 PMCID: PMC6107033 DOI: 10.1038/s41377-018-0053-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Revised: 06/18/2018] [Accepted: 07/11/2018] [Indexed: 06/09/2023]
Abstract
Second harmonic generation (SHG) is forbidden for materials with inversion symmetry, such as bulk metals. Symmetry can be broken by morphological or dielectric discontinuities, yet SHG from a smooth continuous metallic surface is negligible. Using non-linear microscopy, we experimentally demonstrate enhanced SHG within an area of smooth silver film surrounded by nanocavities. Nanocavity-assisted SHG is locally enhanced by more than one order of magnitude compared to a neighboring silver surface area. Linear optical measurements and cathodoluminescence (CL) imaging substantiate these observations. We suggest that plasmonic modes launched from the edges of the nanocavities propagate onto the smooth silver film and annihilate, locally generating SHG. In addition, we show that these hotspots can be dynamically controlled in intensity and location by altering the polarization of the incoming field. Our results show that switchable nonlinear hotspots can be generated on smooth metallic films, with important applications in photocatalysis, single-molecule spectroscopy and non-linear surface imaging.
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Affiliation(s)
- Matan Galanty
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Omer Shavit
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Adam Weissman
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Hannah Aharon
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - David Gachet
- Attolight AG, EPFL Innovation Park, Building D, 1015 Lausanne, Switzerland
| | - Elad Segal
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
| | - Adi Salomon
- Department of Chemistry, BINA Nano Center for Advanced Materials, Bar-Ilan University, Ramat-Gan, Israel
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28
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Timofeeva M, Lang L, Timpu F, Renaut C, Bouravleuv A, Shtrom I, Cirlin G, Grange R. Anapoles in Free-Standing III-V Nanodisks Enhancing Second-Harmonic Generation. NANO LETTERS 2018; 18:3695-3702. [PMID: 29771127 DOI: 10.1021/acs.nanolett.8b00830] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Nonradiating electromagnetic configurations in nanostructures open new horizons for applications due to two essential features: a lack of energy losses and invisibility to the propagating electromagnetic field. Such radiationless configurations form a basis for new types of nanophotonic devices, in which a strong electromagnetic field confinement can be achieved together with lossless interactions between nearby components. In our work, we present a new design of free-standing disk nanoantennas with nonradiating current distributions for the optical near-infrared range. We show a novel approach to creating nanoantennas by slicing III-V nanowires into standing disks using focused ion-beam milling. We experimentally demonstrate the suppression of the far-field radiation and the associated strong enhancement of the second-harmonic generation from the disk nanoantennas. With a theoretical analysis of the electromagnetic field distribution using multipole expansions in both spherical and Cartesian coordinates, we confirm that the demonstrated nonradiating configurations are anapoles. We expect that the presented procedure of designing and producing disk nanoantennas from nanowires becomes one of the standard approaches to fabricating controlled chains of standing nanodisks with different designs and configurations. These chains can be essential building blocks for new types of lasers and sensors with low power consumption.
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Affiliation(s)
- Maria Timofeeva
- ETH Zurich , Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics , Auguste-Piccard Hof 1 , 8093 Zurich , Switzerland
| | - Lukas Lang
- ETH Zurich , Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics , Auguste-Piccard Hof 1 , 8093 Zurich , Switzerland
| | - Flavia Timpu
- ETH Zurich , Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics , Auguste-Piccard Hof 1 , 8093 Zurich , Switzerland
| | - Claude Renaut
- ETH Zurich , Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics , Auguste-Piccard Hof 1 , 8093 Zurich , Switzerland
| | - Alexei Bouravleuv
- Saint Petersburg Academic University , Ul. Khlopina 8/3 , 194021 Saint Petersburg , Russia
| | - Igor Shtrom
- Saint Petersburg Academic University , Ul. Khlopina 8/3 , 194021 Saint Petersburg , Russia
| | - George Cirlin
- ITMO University , Kronverkskiy 49 , 197101 Saint Petersburg , Russia
| | - Rachel Grange
- ETH Zurich , Optical Nanomaterial Group, Institute for Quantum Electronics, Department of Physics , Auguste-Piccard Hof 1 , 8093 Zurich , Switzerland
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29
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Ni S, Isa L, Wolf H. Capillary assembly as a tool for the heterogeneous integration of micro- and nanoscale objects. SOFT MATTER 2018; 14:2978-2995. [PMID: 29611588 DOI: 10.1039/c7sm02496g] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
During the past decade, capillary assembly in topographical templates has evolved into an efficient method for the heterogeneous integration of micro- and nano-scale objects on a variety of surfaces. This assembly route has been applied to a large spectrum of materials of micrometer to nanometer dimensions, supplied in the form of aqueous colloidal suspensions. Using systems produced via bulk synthesis affords a huge flexibility in the choice of materials, holding promise for the realization of novel superior devices in the fields of optics, electronics and health, if they can be integrated into surface structures in a fast, simple, and reliable way. In this review, the working principles of capillary assembly and its fundamental process parameters are first presented and discussed. We then examine the latest developments in template design and tool optimization to perform capillary assembly in more robust and efficient ways. This is followed by a focus on the broad range of functional materials that have been realized using capillary assembly, from single components to large-scale heterogeneous multi-component assemblies. We then review current applications of capillary assembly, especially in optics, electronics, and in biomaterials. We conclude with a short summary and an outlook for future developments.
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Affiliation(s)
- Songbo Ni
- IBM Research - Zurich, Säumerstrasse 4, 8803 Rüschlikon, Switzerland.
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30
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Ni S, Wolf H, Isa L. Programmable Assembly of Hybrid Nanoclusters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:2481-2488. [PMID: 29364683 DOI: 10.1021/acs.langmuir.7b03944] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Hybrid nanoparticle clusters (often metallic) are interesting plasmonic materials with tunable resonances and a near-field electromagnetic enhancement at interparticle junctions. Therefore, in recent years, we have witnessed a surge in both the interest in these materials and the efforts to obtain them. However, a versatile fabrication of hybrid nanoclusters, that is, combining more than one material, still remains an open challenge. Current lithographical or self-assembly methods are limited to the preparation of hybrid clusters with up to two different materials and typically to the fabrication of hybrid dimers. Here, we provide a novel strategy to deposit and align not only hybrid dimers but also hybrid nanoclusters possessing more complex shapes and compositions. Our strategy is based on the downscaling of sequential capillarity-assisted particle assembly over topographical templates. As a proof of concept, we demonstrate dimers, linear trimers, and 2D nanoclusters with programmable compositions from a range of metallic nanoparticles. Our process does not rely on any specific chemistry and can be extended to a large variety of particles and shapes. The template also simultaneously aligns the hybrid (often anisotropic) nanoclusters, which could facilitate device integration, for example, for optical readout after transfer to other substrates by a printing step. We envisage that this new fabrication route will enable the assembly and positioning of complex hybrid nanoclusters of different functional nanoparticles to study coupling effects not only locally but also at larger scales for new nanoscale optical devices.
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Affiliation(s)
- Songbo Ni
- Laboratory for Interfaces, Soft Matter, and Assembly, Department of Materials, ETH Zurich , Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
- IBM Research Zurich , Säumerstrasse 4, 8803 Rüschlikon, Switzerland
| | - Heiko Wolf
- IBM Research Zurich , Säumerstrasse 4, 8803 Rüschlikon, Switzerland
| | - Lucio Isa
- Laboratory for Interfaces, Soft Matter, and Assembly, Department of Materials, ETH Zurich , Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
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