1
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Zhou L, Huang Q, Xia Y. Plasmon-Induced Hot Electrons in Nanostructured Materials: Generation, Collection, and Application to Photochemistry. Chem Rev 2024. [PMID: 38829921 DOI: 10.1021/acs.chemrev.4c00165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Plasmon refers to the coherent oscillation of all conduction-band electrons in a nanostructure made of a metal or a heavily doped semiconductor. Upon excitation, the plasmon can decay through different channels, including nonradiative Landau damping for the generation of plasmon-induced energetic carriers, the so-called hot electrons and holes. The energetic carriers can be collected by transferring to a functional material situated next to the plasmonic component in a hybrid configuration to facilitate a range of photochemical processes for energy or chemical conversion. This article centers on the recent advancement in generating and utilizing plasmon-induced hot electrons in a rich variety of hybrid nanostructures. After a brief introduction to the fundamentals of hot-electron generation and decay in plasmonic nanocrystals, we extensively discuss how to collect the hot electrons with various types of functional materials. With a focus on plasmonic nanocrystals made of metals, we also briefly examine those based upon heavily doped semiconductors. Finally, we illustrate how site-selected growth can be leveraged for the rational fabrication of different types of hybrid nanostructures, with an emphasis on the parameters that can be experimentally controlled to tailor the properties for various applications.
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Affiliation(s)
- Li Zhou
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, P. R. China
| | - Qijia Huang
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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2
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Duan S, Tian G, Luo Y. Theoretical and computational methods for tip- and surface-enhanced Raman scattering. Chem Soc Rev 2024; 53:5083-5117. [PMID: 38596836 DOI: 10.1039/d3cs01070h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Raman spectroscopy is a versatile tool for acquiring molecular structure information. The incorporation of plasmonic fields has significantly enhanced the sensitivity and resolution of surface-enhanced Raman scattering (SERS) and tip-enhanced Raman spectroscopy (TERS). The strong spatial confinement effect of plasmonic fields has challenged the conventional Raman theory, in which a plane wave approximation for the light has been adopted. In this review, we comprehensively survey the progress of a generalized theory for SERS and TERS in the framework of effective field Hamiltonian (EFH). With this approach, all characteristics of localized plasmonic fields can be well taken into account. By employing EFH, quantitative simulations at the first-principles level for state-of-the-art experimental observations have been achieved, revealing the underlying intrinsic physics in the measurements. The predictive power of EFH is demonstrated by several new phenomena generated from the intrinsic spatial, momentum, time, and energy structures of the localized plasmonic field. The corresponding experimental verifications are also carried out briefly. A comprehensive computational package for modeling of SERS and TERS at the first-principles level is introduced. Finally, we provide an outlook on the future developments of theory and experiments for SERS and TERS.
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Affiliation(s)
- Sai Duan
- Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, MOE Key Laboratory of Computational Physical Sciences, Department of Chemistry, Fudan University, Shanghai 200433, China.
| | - Guangjun Tian
- State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China
| | - Yi Luo
- Hefei National Research Center for Physical Science at the Microscale and Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
- Hefei National Laboratory, University of Science and Technology of China, Hefei, 230088, China
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3
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Tang XT, Ma L, You Y, Du XJ, Qiu H, Guan XH, He J, Yang ZJ. Relations between near-field enhancements and Purcell factors in hybrid nanostructures of plasmonic antennas and dielectric cavities. OPTICS EXPRESS 2024; 32:16746-16760. [PMID: 38858873 DOI: 10.1364/oe.521090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/11/2024] [Indexed: 06/12/2024]
Abstract
Strong near-field enhancements (NFEs) of nanophotonic structures are believed to be closely related to high Purcell factors (FP). Here, we theoretically show that the correlation is partially correct; the extinction cross section (σ) response is also critical in determining FP. The divergence between NFE and FP is especially pronounced in plasmonic-dielectric hybrid systems, where the plasmonic antenna supports dipolar plasmon modes and the dielectric cavity hosts Mie-like resonances. The cavity's enhanced-field environment can boost the antenna's NFEs, but the FP is not increased concurrently due to the larger effective σ that is intrinsic to the FP calculations. Interestingly, the peak FP for the coupled system can be predicted by using the NFE and σ responses. Furthermore, the limits for FP of coupled systems are considered; they are determined by the sum of the FP of a redshifted (or modified, if applicable) antenna and an individual cavity. This contrasts starkly with the behavior of NFE which is closely associated with the multiplicative effects of the NFEs provided by the antenna and the dielectric cavity. The differing behaviors of NFE and FP in hybrid cavities have varied impacts on relevant nanophotonic applications such as fluorescence, Raman scattering and enhanced light-matter interactions.
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4
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Tan MJH, Patel SK, Chiu J, Zheng ZT, Odom TW. Liquid lasing from solutions of ligand-engineered semiconductor nanocrystals. J Chem Phys 2024; 160:154703. [PMID: 38624126 DOI: 10.1063/5.0201731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 03/28/2024] [Indexed: 04/17/2024] Open
Abstract
Semiconductor nanocrystals (NCs) can function as efficient gain materials with chemical versatility because of their surface ligands. Because the properties of NCs in solution are sensitive to ligand-environment interactions, local chemical changes can result in changes in the optical response. However, amplification of the optical response is technically challenging because of colloidal instability at NC concentrations needed for sufficient gain to overcome losses. This paper demonstrates liquid lasing from plasmonic lattice cavities integrated with ligand-engineered CdZnS/ZnS NCs dispersed in toluene and water. By taking advantage of calcium ion-induced aggregation of NCs in aqueous solutions, we show how lasing threshold can be used as a transduction signal for ion detection. Our work highlights how NC solutions and plasmonic lattices with open cavity architectures can serve as a biosensing platform for lab-on-chip devices.
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Affiliation(s)
- Max J H Tan
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Shreya K Patel
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Jessica Chiu
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | | | - Teri W Odom
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
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5
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Piotrowski P, Buza M, Nowaczyński R, Kongsuwan N, Surma HB, Osewski P, Gajc M, Strzep A, Ryba-Romanowski W, Hess O, Pawlak DA. Ultrafast photoluminescence and multiscale light amplification in nanoplasmonic cavity glass. Nat Commun 2024; 15:3309. [PMID: 38632272 PMCID: PMC11024168 DOI: 10.1038/s41467-024-47539-3] [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: 03/27/2023] [Accepted: 03/28/2024] [Indexed: 04/19/2024] Open
Abstract
Interactions between plasmons and exciton nanoemitters in plexcitonic systems lead to fast and intense luminescence, desirable in optoelectonic devices, ultrafast optical switches and quantum information science. While luminescence enhancement through exciton-plasmon coupling has thus far been mostly demonstrated in micro- and nanoscale structures, analogous demonstrations in bulk materials have been largely neglected. Here we present a bulk nanocomposite glass doped with cadmium telluride quantum dots (CdTe QDs) and silver nanoparticles, nAg, which act as exciton and plasmon sources, respectively. This glass exhibits ultranarrow, FWHM = 13 nm, and ultrafast, 90 ps, amplified photoluminescence (PL), λem≅503 nm, at room temperature under continuous-wave excitation, λexc = 405 nm. Numerical simulations confirm that the observed improvement in emission is a result of a multiscale light enhancement owing to the ensemble of QD-populated plasmonic nanocavities in the material. Power-dependent measurements indicate that >100 mW coherent light amplification occurs. These types of bulk plasmon-exciton composites could be designed comprising a plethora of components/functionalities, including emitters (QDs, rare earth and transition metal ions) and nanoplasmonic elements (Ag/Au/TCO, spherical/anisotropic/miscellaneous), to achieve targeted applications.
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Affiliation(s)
- Piotr Piotrowski
- Centre of Excellence ENSEMBLE3 sp. z o.o, Wolczynska 133, Warsaw, Poland.
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw, Poland.
| | - Marta Buza
- (Formerly at) Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, Poland
| | - Rafał Nowaczyński
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw, Poland
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, Warsaw, Poland
| | - Nuttawut Kongsuwan
- Quantum Technology Foundation (Thailand), 98 Soi Ari, Bangkok, Thailand
- Thailand Center of Excellence in Physics, Ministry of Higher Education, Science, Research and Innovation, Bangkok, Thailand
| | - Hańcza B Surma
- Centre of Excellence ENSEMBLE3 sp. z o.o, Wolczynska 133, Warsaw, Poland
- (Formerly at) Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, Poland
| | - Paweł Osewski
- (Formerly at) Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, Poland
| | - Marcin Gajc
- (Formerly at) Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, Poland
| | - Adam Strzep
- Institute of Low Temperature and Structure Research PAS, Okolna 2, Wroclaw, Poland
| | | | - Ortwin Hess
- School of Physics and CRANN Institute, Trinity College Dublin, Dublin 2, Ireland.
| | - Dorota A Pawlak
- Centre of Excellence ENSEMBLE3 sp. z o.o, Wolczynska 133, Warsaw, Poland.
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw, Poland.
- (Formerly at) Institute of Electronic Materials Technology, Wolczynska 133, Warsaw, Poland.
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6
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Li X, Ghaffari A, Abbas F, Gu Q. Plasmon near-field coupling and universal scaling behavior in shifted-core coaxial nano-cavity pair. OPTICS EXPRESS 2024; 32:14770-14779. [PMID: 38859413 DOI: 10.1364/oe.516604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 03/31/2024] [Indexed: 06/12/2024]
Abstract
We computationally and analytically investigate the plasmon near-field coupling phenomenon and the associated universal scaling behavior in a pair of coupled shifted-core coaxial nano-cavities. Each nano-cavity is composed of an InGaAsP gain medium sandwiched between a silver (Ag) core and an Ag shell. The evanescent coupling between the cavities lifts the degeneracy of the cut-off free transverse electromagnetic (TEM) like mode. The mode splitting of the supermodes is intensified by shifting the metal core position, which induces symmetry breaking. This coupling phenomenon is explained with spring-capacitor analogy and circuit analysis. The numerical simulation results reveal an exponential decay in the fractional plasmon wavelength relative to the ratio of gap distance and core shifting distance, which aligns with the plasmon ruler equation. In addition, by shifting the Ag cores in both cavities toward the center of the coupled structure, the electromagnetic field becomes strongly localized in nanoscale regions (hotspots) in the gain medium between the cavities, thus achieving extreme plasmonic nanofocusing. Utilizing this nanofocusing effect, we propose a refractive index sensor by placing a fluidic channel between the two cavities in close vicinity to the hotspots and reaching the highest sensitivity of ∼700nm/RIU.
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7
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Takaishi M, Komino T, Kameda A, Togawa K, Yokomatsu T, Maenaka K, Tajima H. Suppression of the plasmon-quenching effect on light amplification in 20-μm-diameter plasmonic whispering gallery mode resonators fabricated from bowl-shaped organic/metal thin films. Phys Chem Chem Phys 2024; 26:10796-10803. [PMID: 38516939 DOI: 10.1039/d4cp00389f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Bowl-shaped plasmonic whispering gallery mode (WGM) resonators were fabricated from a 10-nm-thick metal (Al, Ag, or Au) plasmonic layer that was covered with a 100-nm-thick 4,4'-bis(N-carbazolyl)-1,1'-biphenyl spacer layer and a 250-nm-thick 2,7-bis[9,9-di(4-methylphenyl)-fluoren-2-yl]-9,9-di(4-methylphenyl)fluorene light-emitting layer; the layer structure was grown on a 20-μm-diameter silica microsphere. When compared with a reference structure without the plasmonic layer, the resonators, which included either Al or Ag, showed almost the same threshold excitation intensities for generation of amplified spontaneous emission (ASE). This result indicates that the ease of light amplification in the plasmonic resonators was comparable to that in the reference structure. Excitons that exist in the vicinity of metal thin films are generally easy to quench because propagating surface plasmon polaritons (SPPs) absorb the exciton energy. Therefore, the observed comparability demonstrates that the plasmonic WGM resonators overcome this quenching effect on ASE via localization of the SPPs in the vicinity of the excitons.
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Affiliation(s)
- Minami Takaishi
- Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan.
| | - Takeshi Komino
- Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan.
| | - Akihiro Kameda
- Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan.
| | - Kyosuke Togawa
- Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan.
| | - Tokuji Yokomatsu
- Graduate School of Engineering, University of Hyogo, Himeji, Hyogo 671-2280, Japan
| | - Kazusuke Maenaka
- Graduate School of Engineering, University of Hyogo, Himeji, Hyogo 671-2280, Japan
| | - Hiroyuki Tajima
- Graduate School of Science, University of Hyogo, Ako-gun, Hyogo 678-1297, Japan.
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8
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Kaliberda ME, Pogarsky SA, Kostenko OV, Nosych OI, Zinenko TL. Circular quantum wire symmetrically loaded with a graphene strip as the plasmonic micro/nano laser: threshold conditions analysis. OPTICS EXPRESS 2024; 32:12213-12227. [PMID: 38571051 DOI: 10.1364/oe.514643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 03/04/2024] [Indexed: 04/05/2024]
Abstract
We study, apparently for the first time, the threshold conditions for the time-harmonic natural modes of the micro-to-nanosize plasmonic laser shaped as a circular quantum wire with a flat graphene strip, placed symmetrically inside it, in the H-polarization case. We suppose that the quantum wire is made of a nonmagnetic gain material, characterized with the aid of the "active" imaginary part of the complex refractive index. The emergence of lasers integrating plasmonic effects marks a significant trend in contemporary photonics. Here, the graphene offers a promising alternative to the noble metals as it exhibits the capacity to sustain plasmon-polariton natural surface waves across the infrared and terahertz (THz) spectra. The used innovative approach is the lasing eigenvalue problem (LEP), which is classical electromagnetic field boundary-value problem, adapted to the presence of active region. It is tailored to deliver both the mode-specific emission frequency, which is purely real at the threshold, and the value of the gain index of the active region, necessary to make the frequency real-valued. The conductivity of graphene is characterized using the quantum Kubo formalism. We reduce the LEP for the considered nanolaser to a hyper-singular integral equation for the current on the strip and discretize it by the Nystrom-type method. This method is meshless and computationally economic. After discretization, a matrix equation is obtained. The sought for mode-specific pairs {the frequency and the threshold gain index} correspond to the zeros of the matrix determinant. It should be noted that the convergence to exact LEP eigenvalues is guaranteed mathematically if the discretization order is taken progressively larger. Two families of modes are identified and studied: the modes of the quantum wire, perturbed by the presence of the graphene strip and the plasmon modes of the strip. The frequencies of all plasmon modes and the lowest mode of the quantum wire are found to be well-tuned by changing the chemical potential of graphene. Engineering analytic formulas for the plasmon-mode frequencies and thresholds are derived. We believe that the presented results can be used in the creation of single-mode tunable micro and nanolasers.
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9
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Zhang CC, Zhang JY, Feng JR, Liu ST, Ding SJ, Ma L, Wang QQ. Plasmon-enhanced second harmonic generation of metal nanostructures. NANOSCALE 2024; 16:5960-5975. [PMID: 38446099 DOI: 10.1039/d3nr06675d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
As the most common nonlinear optical process, second harmonic generation (SHG) has important application value in the field of nanophotonics. With the rapid development of metal nanomaterial processing and chemical preparation technology, various structures based on metal nanoparticles have been used to achieve the enhancement and modulation of SHG. In the field of nonlinear optics, plasmonic metal nanostructures have become potential candidates for nonlinear optoelectronic devices because of their highly adjustable physical characteristics. In this article, first, the basic optical principles of SHG and the source of surface symmetry breaking in metal nanoparticles are briefly introduced. Next, the related reports on SHG in metal nanostructures are reviewed from three aspects: the enhancement of SHG efficiency by double resonance structures, the SHG effect based on magnetic resonance and the harmonic energy transfer. Then, the applications of SHG in the sensing, imaging and in situ monitoring of metal nanostructures are summarized. Future opportunities for SHG in composite systems composed of metal nanostructures and two-dimensional materials are also proposed.
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Affiliation(s)
- Cong-Cong Zhang
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, P. R. China.
| | - Jia-Yi Zhang
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, P. R. China.
| | - Jing-Ru Feng
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, P. R. China.
| | - Si-Ting Liu
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, P. R. China.
| | - Si-Jing Ding
- School of Mathematics and Physics, China University of Geosciences (Wuhan), Wuhan 430074, P. R. China.
| | - Liang Ma
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, Wuhan 430205, P. R. China.
| | - Qu-Quan Wang
- School of Science, Department of Physics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
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10
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Li J, Li Q, Feng H, Jiao K, Zhang C, Weng S, Yang L. Tuning d-Orbital Electronic Structure via Au-Intercalated Two-Dimensional Fe 3GeTe 2 to Increase Surface Plasmon Activity. J Phys Chem Lett 2024; 15:1818-1827. [PMID: 38330253 DOI: 10.1021/acs.jpclett.3c02742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
While extensive research has been dedicated to plasmon tuning within non-noble metals, prior investigations primarily concentrated on markedly augmenting the inherently low concentration of free carriers in materials with minimal consideration given to the influence of electron orbitals on surface plasmons. Here, we achieve successful intercalation of Au atoms into the layered structure of Fe3GeTe2 (FGT), thereby exerting control over the orbital electronic states or structure of FGT. This intervention not only amplifies the charge density and electron mobility but also mitigates the loss associated with interband transitions, resulting in increased two-dimensional FGT surface plasmon activity. As a consequence, Au-intercalated FGT detects crystal violet molecules as a surface-enhanced Raman scattering substrate, and the detection lines are 3 orders of magnitude higher than before Au intercalation. Our work provides insight for further studies on plasmon effects and the relation between surface plasmon resonance behavior and electronic structures.
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Affiliation(s)
- Junxiang Li
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Hefei 230026, Anhui, China
| | - Qiqi Li
- University of Science & Technology of China, Hefei 230026, Anhui, China
- Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Haochuan Feng
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Hefei 230026, Anhui, China
| | - Keke Jiao
- University of Science & Technology of China, Hefei 230026, Anhui, China
- High Magnetic Field Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230031, China
| | - Changjin Zhang
- High Magnetic Field Laboratory of Anhui Province, Chinese Academy of Sciences, Hefei 230031, China
| | - Shirui Weng
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
| | - Liangbao Yang
- Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
- University of Science & Technology of China, Hefei 230026, Anhui, China
- Department of Pharmacy, Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230031, Anhui, China
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11
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Dong G, Xiong M, Dimopoulos E, Sakanas A, Semenova E, Yvind K, Yu Y, Mørk J. Experimental demonstration of a nanobeam Fano laser. OPTICS EXPRESS 2024; 32:5242-5251. [PMID: 38439256 DOI: 10.1364/oe.511425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 01/16/2024] [Indexed: 03/06/2024]
Abstract
Microscopic single-mode lasers with low power consumption, large modulation bandwidth, and ultra-narrow linewidth are essential for numerous applications, such as on-chip photonic networks. A recently demonstrated microlaser using an optical Fano resonance between a discrete mode and a continuum of modes to form one of the mirrors, i.e., the so-called Fano laser, holds great promise for meeting these requirements. Here, we suggest and experimentally demonstrate what we believe is a new configuration of the Fano laser based on a nanobeam geometry. Compared to the conventional two-dimensional photonic crystal geometry, the nanobeam structure makes it easier to engineer the phase-matching condition that facilitates the realization of a bound-state-in-the-continuum (BIC). We investigate the laser threshold in two scenarios based on the new nanobeam geometry. In the first, classical case, the gain is spatially located in the part of the cavity that supports a continuum of modes. In the second case, instead, the gain is located in the region that supports a discrete mode. We find that the laser threshold for the second case can be significantly reduced compared to the conventional Fano laser. These results pave the way for the practical realization of high-performance microlasers.
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12
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Wang L, Wu L, Pan Y. Perovskite Topological Lasers: A Brand New Combination. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 14:28. [PMID: 38202483 PMCID: PMC10781028 DOI: 10.3390/nano14010028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/14/2023] [Accepted: 12/18/2023] [Indexed: 01/12/2024]
Abstract
Nanolasers are the essential components of modern photonic chips due to their low power consumption, high energy efficiency and fast modulation. As nanotechnology has advanced, researchers have proposed a number of nanolasers operating at both wavelength and sub-wavelength scales for application as light sources in photonic chips. Despite the advances in chip technology, the quality of the optical cavity, the operating threshold and the mode of operation of the light source still limit its advanced development. Ensuring high-performance laser operation has become a challenge as device size has been significantly reduced. A potential solution to this problem is the emergence of a novel optical confinement mechanism using photonic topological insulator lasers. In addition, gain media materials with perovskite-like properties have shown great potential for lasers, a role that many other gain materials cannot fulfil. When combined with topological laser modes, perovskite materials offer new possibilities for the operation and emission mechanism of nanolasers. This study introduces the operating mechanism of topological lasers and the optical properties of perovskite materials. It then outlines the key features of their combination and discusses the principles, structures, applications and prospects of perovskite topological lasers, including the scientific hurdles they face. Finally, the future development of low-dimensional perovskite topological lasers is explored.
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Affiliation(s)
| | | | - Yong Pan
- College of Science, Xi’an University of Architecture & Technology, Xi’an 710055, China; (L.W.); (L.W.)
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13
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Herath K, Gunapala SD, Premaratne M. A Floquet engineering approach to optimize Schottky junction-based surface plasmonic waveguides. Sci Rep 2023; 13:10692. [PMID: 37394610 DOI: 10.1038/s41598-023-37801-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 06/28/2023] [Indexed: 07/04/2023] Open
Abstract
The ability to finely control the surface plasmon polariton (SPP) modes of plasmonic waveguides unveils many potential applications in nanophotonics. This work presents a comprehensive theoretical framework for predicting the propagation characteristics of SPP modes at a Schottky junction exposed to a dressing electromagnetic field. Applying the general linear response theory towards a periodically driven many-body quantum system, we obtain an explicit expression for the dielectric function of the dressed metal. Our study demonstrates that the dressing field can be used to alter and fine-tune the electron damping factor. By doing so, the SPP propagation length could be controlled and enhanced by appropriately selecting the intensity, frequency and polarization type of the external dressing field. Consequently, the developed theory reveals an unexplored mechanism for enhancing the SPP propagation length without altering other SPP characteristics. The proposed improvements are compatible with existing SPP-based waveguiding technologies and could lead to breakthroughs in the design and fabrication of state-of-the-art nanoscale integrated circuits and devices in the near future.
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Affiliation(s)
- Kosala Herath
- Advanced Computing and Simulation Laboratory (AχL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Sarath D Gunapala
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, USA
| | - Malin Premaratne
- Advanced Computing and Simulation Laboratory (AχL), Department of Electrical and Computer Systems Engineering, Monash University, Clayton, VIC, 3800, Australia.
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14
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Guo Z, Yu G, Zhang Z, Han Y, Guan G, Yang W, Han MY. Intrinsic Optical Properties and Emerging Applications of Gold Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2206700. [PMID: 36620937 DOI: 10.1002/adma.202206700] [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: 07/23/2022] [Revised: 12/21/2022] [Indexed: 06/09/2023]
Abstract
The collective oscillation of free electrons at the nanoscale surface of gold nanostructures is closely modulated by tuning the size, shape/morphology, phase, composition, hybridization, assembly, and nanopatterning, along with the surroundings of the plasmonic surface located at a dielectric interface with air, liquid, and solid. This review first introduces the physical origin of the intrinsic optical properties of gold nanostructures and further summarizes stimuli-responsive changes in optical properties, metal-field-enhanced optical signals, luminescence spectral shaping, chiroptical response, and photogenerated hot carriers. The current success in the landscape of nanoscience and nanotechnology mainly originates from the abundant optical properties of gold nanostructures in the thermodynamically stable face-centered cubic (fcc) phase. It has been further extended by crystal phase engineering to prepare thermodynamically unfavorable phases (e.g., kinetically stable) and heterophases to modulate their intriguing phase-dependent optical properties. A broad range of promising applications, including but not limited to full-color displays, solar energy harvesting, photochemical reactions, optical sensing, and microscopic/biomedical imaging, have fostered parallel research on the multitude of physical effects occurring in gold nanostructures.
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Affiliation(s)
- Zilong Guo
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Guo Yu
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Zhiguo Zhang
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Yandong Han
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Guijian Guan
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
| | - Wensheng Yang
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475001, China
| | - Ming-Yong Han
- Institute of Molecular Plus, Tianjin University, 92 Weijin Road, Tianjin, 300072, China
- Institute of Materials Research and Engineering, 2 Fusionopolis Way, Singapore, 138634, Singapore
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15
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Anwar A, Mur M, Humar M. Microcavity- and Microlaser-Based Optical Barcoding: A Review of Encoding Techniques and Applications. ACS PHOTONICS 2023; 10:1202-1224. [PMID: 37215324 PMCID: PMC10197175 DOI: 10.1021/acsphotonics.2c01611] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Indexed: 05/24/2023]
Abstract
Optical microbarcodes have recently received a great deal of interest because of their suitability for a wide range of applications, such as multiplexed assays, cell tagging and tracking, anticounterfeiting, and product labeling. Spectral barcodes are especially promising because they are robust and have a simple readout. In addition, microcavity- and microlaser-based barcodes have very narrow spectra and therefore have the potential to generate millions of unique barcodes. This review begins with a discussion of the different types of barcodes and then focuses specifically on microcavity-based barcodes. While almost any kind of optical microcavity can be used for barcoding, currently whispering-gallery microcavities (in the form of spheres and disks), nanowire lasers, Fabry-Pérot lasers, random lasers, and distributed feedback lasers are the most frequently employed for this purpose. In microcavity-based barcodes, the information is encoded in various ways in the properties of the emitted light, most frequently in the spectrum. The barcode is dependent on the properties of the microcavity, such as the size, shape, and the gain materials. Various applications of these barcodes, including cell tracking, anticounterfeiting, and product labeling are described. Finally, the future prospects for microcavity- and microlaser-based barcodes are discussed.
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Affiliation(s)
- Abdur
Rehman Anwar
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Maruša Mur
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Matjaž Humar
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
- CENN
Nanocenter, Jamova 39, SI-1000 Ljubljana, Slovenia
- Faculty
of Mathematics and Physics, University of
Ljubljana, Jadranska
19, SI-1000 Ljubljana, Slovenia
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16
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Liao JW, Huang ZT, Wu CH, Gagrani N, Tan HH, Jagadish C, Chen KP, Lu TC. Highly Localized Surface Plasmon Nanolasers via Strong Coupling. NANO LETTERS 2023; 23:4359-4366. [PMID: 37155142 DOI: 10.1021/acs.nanolett.3c00614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Surface plasmons have robust and strong confinement to the light field which is beneficial for the light-matter interaction. Surface plasmon amplification by stimulated emission of radiation (SPACER) has the potential to be integrated on the semiconductor chip as a compact coherent light source, which can play an important role in further extension of Moore's law. In this study, we demonstrate the localized surface plasmon lasing at room temperature in the communication band using metallic nanoholes as the plasmonic nanocavity and InP nanowires as the gain medium. Optimizing laser performance has been demonstrated by coupling between two metallic nanoholes which adds another degree of freedom for manipulating the lasing properties. Our plasmonic nanolasers exhibit lower power consumption, smaller mode volumes, and higher spontaneous emission coupling factors due to enhanced light-matter interactions, which are very promising in the applications of high-density sensing and photonic integrated circuits.
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Affiliation(s)
- Jun-Wei Liao
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Zhen-Ting Huang
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Chia-Hung Wu
- College of Photonics, National Chiao Tung University and National Yang Ming Chiao Tung University, 301 Gaofa third Road, Tainan 71150, Taiwan
| | - Nikita Gagrani
- ARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, Australia
| | - Hark Hoe Tan
- ARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, Australia
| | - Chennupati Jagadish
- ARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2600, Australia
| | - Kuo-Ping Chen
- Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Tien-Chang Lu
- Department of Photonics, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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17
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Babicheva VE. Optical Processes behind Plasmonic Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1270. [PMID: 37049363 PMCID: PMC10097005 DOI: 10.3390/nano13071270] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/30/2023] [Accepted: 04/02/2023] [Indexed: 06/19/2023]
Abstract
Plasmonics is a revolutionary concept in nanophotonics that combines the properties of both photonics and electronics by confining light energy to a nanometer-scale oscillating field of free electrons, known as a surface plasmon. Generation, processing, routing, and amplification of optical signals at the nanoscale hold promise for optical communications, biophotonics, sensing, chemistry, and medical applications. Surface plasmons manifest themselves as confined oscillations, allowing for optical nanoantennas, ultra-compact optical detectors, state-of-the-art sensors, data storage, and energy harvesting designs. Surface plasmons facilitate both resonant characteristics of nanostructures and guiding and controlling light at the nanoscale. Plasmonics and metamaterials enable the advancement of many photonic designs with unparalleled capabilities, including subwavelength waveguides, optical nanoresonators, super- and hyper-lenses, and light concentrators. Alternative plasmonic materials have been developed to be incorporated in the nanostructures for low losses and controlled optical characteristics along with semiconductor-process compatibility. This review describes optical processes behind a range of plasmonic applications. It pays special attention to the topics of field enhancement and collective effects in nanostructures. The advances in these research topics are expected to transform the domain of nanoscale photonics, optical metamaterials, and their various applications.
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Affiliation(s)
- Viktoriia E Babicheva
- Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM 87106, USA
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18
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Piccotti D, Trevisani M, Pirruccio G, Kalinic B, Cesca T, Mattei G. Polarized coherent emission outside high-symmetry points of dye-coupled plasmonic lattices. Phys Chem Chem Phys 2023; 25:8641-8650. [PMID: 36891948 DOI: 10.1039/d3cp00068k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Developing intense, coherent and ultra-fast light sources with nanoscale dimensions is a crucial issue for many applications in nanophotonics. To date, plasmonic nanolasers represent one of the most promising nanophotonic devices capable of this remarkable feature. In the present work we report on the emission properties of two-dimensional Au hexagonal nanodome arrays, fabricated by nanosphere lithography, coupled with a dye liquid solution used as the gain medium. Low-threshold stimulated emission at room temperature is demonstrated by spectral and angle-resolved photoluminescence measurements performed as a function of the pump fluence. The emission arises with narrow angular divergence in off-normal direction, out of high-symmetry points of the plasmonic lattice. The polarization properties of the stimulated emission are investigated, revealing a strong linear polarization character controlled by the polarization orientation of the pumping beam, while the first-order temporal coherence properties are measured by using a tilted-mirrors Michelson interferometer. Finally, by comparing the results obtained for the plasmonic Au nanodomes arrays with those of purely dielectric nanoarrays, the role of the plasmonic modes and the photonic lattice modes in the emission process is highlighted.
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Affiliation(s)
- Diego Piccotti
- University of Padova, Department of Physics and Astronomy, NanoStructures Group, via Marzolo 8, I-35131 Padova, Italy.
| | - Mirko Trevisani
- University of Padova, Department of Physics and Astronomy, NanoStructures Group, via Marzolo 8, I-35131 Padova, Italy.
| | - Giuseppe Pirruccio
- Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Apartado Postal 20-364, Mexico D.F. 01000, Mexico
| | - Boris Kalinic
- University of Padova, Department of Physics and Astronomy, NanoStructures Group, via Marzolo 8, I-35131 Padova, Italy.
| | - Tiziana Cesca
- University of Padova, Department of Physics and Astronomy, NanoStructures Group, via Marzolo 8, I-35131 Padova, Italy.
| | - Giovanni Mattei
- University of Padova, Department of Physics and Astronomy, NanoStructures Group, via Marzolo 8, I-35131 Padova, Italy.
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19
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Surface lattice resonance in three-dimensional plasmonic arrays fabricated via self-assembly of silica-coated gold nanoparticles. J Colloid Interface Sci 2023; 633:226-232. [PMID: 36446215 DOI: 10.1016/j.jcis.2022.11.077] [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: 09/30/2022] [Revised: 11/08/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
HYPOTHESIS Three-dimensional plasmonic nanoparticle arrays in which the nanoparticles are assembled with a certain distance apart are expected to exhibit unique optical properties attributed to surface lattice resonances because of the interactions between the nanoparticle layers. EXPERIMENTS Multi-layered gold nanoparticle arrays were created to experimentally prove surface lattice resonances from three-dimensional arrays. Silica-coated gold nanoparticles were employed as building blocks for the array because the distance between the nanoparticles can be tuned by adjusting the thickness of the silica coating. Employing highly monodisperse building blocks enabled to fabricate both single-layered and multi-layered plasmonic arrays via a confined convective assembly method. FINDINGS Multi-layering of monodisperse building blocks brought about some additional peaks corresponded to Bragg diffraction of gold nanoparticle periodic array and the interactions between layers in a hexagonal close-packed structure of the nanoparticles, respectively. Most importantly, the multi-layered arrays exhibited a distinctive extinction peak at the same wavelength as that observed from the single-layered array, proving the realization of surface lattice resonances from the three-dimensional plasmonic array.
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20
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Recalde N, Bustamante D, Infusino M, Veltri A. Dynamic Multi-Mode Mie Model for Gain-Assisted Metal Nano-Spheres. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1911. [PMID: 36903024 PMCID: PMC10004665 DOI: 10.3390/ma16051911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/10/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Coupling externally pumped gain materials with plasmonic spherical particles, even in the simplest case of a single spherical nanoparticle in a uniform gain medium, generates an incredibly rich variety of electrodynamic phenomena. The appropriate theoretical description of these systems is dictated by the quantity of the included gain and the size of the nano-particle. On the one hand, when the gain level is below the threshold separating the absorption and the emission regime, a steady-state approach is a rather adequate depiction, yet a time dynamic approach becomes fundamental when this threshold is exceeded. On the other hand, while a quasi-static approximation can be used to model nanoparticles when they are much smaller than the exciting wavelength, a more complete scattering theory is necessary to discuss larger nanoparticles. In this paper, we describe a novel method including a time-dynamical approach to the Mie scattering theory, which is able to account for all the most enticing aspects of the problem without any limitation in the particle's size. Ultimately, although the presented approach does not fully describe the emission regime yet, it does allow us to predict the transient states preceding emission and represents an essential step forward in the direction of a model able to adequately describe the full electromagnetic phenomenology of these systems.
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Affiliation(s)
- Nicole Recalde
- Colegio de Ciencias e Ingenieria, Universidad San Francisco de Quito, Quito 170901, Ecuador
| | | | - Melissa Infusino
- Colegio de Ciencias e Ingenieria, Universidad San Francisco de Quito, Quito 170901, Ecuador
| | - Alessandro Veltri
- Colegio de Ciencias e Ingenieria, Universidad San Francisco de Quito, Quito 170901, Ecuador
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21
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Liu Z, Yang S, Han Y, Hao T, Zhang M, Li M, Zhu N. Directly modulated parity-time symmetric single-mode Fabry-Perot laser. OPTICS EXPRESS 2023; 31:6770-6781. [PMID: 36823927 DOI: 10.1364/oe.484580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Effective manipulation of resonant mode, output power and modulation bandwidth of lasers are all of vital importance for practical application scenarios such as communication systems. We show that by breaking the parity-time (PT) symmetry, single mode operation lasing can be realized in an intrinsic multiple mode Fabry-Perot (FP) resonator. Two identical FP resonators are employed to establish a symmetric system and high output power can be achieved with lower fabrication difficulty and intracavity losses compared with ring resonators. The small-signal response and direct modulation of the PT-symmetric FP laser have also been demonstrated with electrical pumping. Our work opens new avenues for mode selection of high-performance FP lasers and provides a cost-effective candidate for practical applications such as communication systems.
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22
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Martín VF, Solís DM, Jericó D, Landesa L, Obelleiro F, Taboada JM. Discontinuous Galerkin integral equation method for light scattering from complex nanoparticle assemblies. OPTICS EXPRESS 2023; 31:1034-1048. [PMID: 36785147 DOI: 10.1364/oe.478414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 12/08/2022] [Indexed: 06/18/2023]
Abstract
This paper presents a discontinuous Galerkin (DG) integral equation (IE) method for the electromagnetic analysis of arbitrarily-shaped plasmonic assemblies. The use of nonconformal meshes provides improved flexibility for CAD prototyping and tessellation of the input geometry. The formulation can readily address nonconformal multi-material junctions (where three or more material regions meet), allowing to set very different mesh sizes depending on the material properties of the different subsystems. It also enables the use of h-refinement techniques to improve accuracy without burdening the computational cost. The continuity of the equivalent electric and magnetic surface currents across the junction contours is enforced by a combination of boundary conditions and local, weakly imposed, interior penalties within the junction regions. A comprehensive study is made to compare the performance of different IE-DG alternatives applied to plasmonics. The numerical experiments conducted validate the accuracy and versatility of this formulation for the resolution of complex nanoparticle assemblies.
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23
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Zhou Y, Zhu J, Xi J, Li K, Huang W. Quantitative Insights into a Plasmonic Ruler Equation from the Perspective of Enhanced Near Field. J Phys Chem A 2023; 127:390-399. [PMID: 36571254 DOI: 10.1021/acs.jpca.2c07702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The plasmonic shift of resonance wavelength induced by near-field coupling enables one to measure nanoscale distances optically. Empirically, the well-known ruler equation correlating plasmon shift with interparticle spacing was proposed. Though it has been widely used in analyzing simulation and experimental outcomes, little is known about the underlying physical mechanism of the characteristic exponential form of the plasmon ruler equation and the universal decay constant therein. In this work, we attempt to decrypt these from the perspective of plasmon near-field enhancement. Based on an analytical quasi-normal mode formula for plasmon shifts, we proved that the exponential decaying electric field is the critical reason that results in the exponential form of the plasmon ruler equation and quantitatively, we found that the universal decay constant in the plasmon ruler equation actually reflects the range of the enhanced near field. This work hopefully helps to deepen the understanding of the mechanism of light-matter interaction in corresponding plasmonic processes.
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Affiliation(s)
- Yong Zhou
- Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui241000, P. R. China
| | - Jiahui Zhu
- Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui241000, P. R. China
| | - Jin Xi
- Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui241000, P. R. China
| | - Kuanguo Li
- Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui241000, P. R. China
| | - Wanxia Huang
- Anhui Key Laboratory of Optoelectric Materials Science and Technology, Department of Physics, Anhui Normal University, Wuhu, Anhui241000, P. R. China
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24
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Akram H, Abdullah M, Al-Khursan AH. Energy absorbed from double quantum dot-metal nanoparticle hybrid system. Sci Rep 2022; 12:21495. [PMID: 36513772 PMCID: PMC9747977 DOI: 10.1038/s41598-022-25765-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/05/2022] [Indexed: 12/15/2022] Open
Abstract
This work proposes the double quantum dot (DQD)-metal nanoparticle (MNP) hybrid system for a high energy absorption rate. The structure is modeled using density matrix equations that consider the interaction between excitons and surface plasmons. The wetting layer (WL)-DQD transitions are considered, and the orthogonalized plane wave (OPW) between these transitions is considered. The DQD energy states and momentum calculations with OPW are the figure of merit recognizing this DQD-MNP work. The results show that at the high pump and probe application, the total absorption rate [Formula: see text] of the DQD-MNP hybrid system is increased by reducing the distance between DQD-MNP. The high [Formula: see text] obtained may relate to two reasons: first, the WL washes out modes other than the condensated main mode. Second, the high flexibility of manipulating DQD states compared to QD states results in more optical properties for DQD. The [Formula: see text] is increased at a small MNP radius on the contrary to the [Formula: see text] which is increased at a wider MNP radius. Under high tunneling, a broader blue shift in the [Formula: see text] due to the destructive interference between fields is seen and the synchronization between [Formula: see text] and [Formula: see text] is destroyed. [Formula: see text] for the DQD-MNP is increased by six orders while [Formula: see text] is by eight orders compared to the single QD-MNP hybrid system. The high absorption rate of the DQD-MNP hybrid system comes from the transition possibilities and flexibility of choosing the transitions in the DQD system, which strengthens the transitions and increases the linear and nonlinear optical properties. This will make the DQD-MNP hybrid systems preferable to QD-MNP systems.
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Affiliation(s)
- Haneen Akram
- Nasiriya Nanotechnology Research Laboratory (NNRL), College of Science, University of Thi-Qar, Nasiriya, Iraq
| | - Muwaffaq Abdullah
- Nasiriya Nanotechnology Research Laboratory (NNRL), College of Science, University of Thi-Qar, Nasiriya, Iraq
| | - Amin H. Al-Khursan
- Nasiriya Nanotechnology Research Laboratory (NNRL), College of Science, University of Thi-Qar, Nasiriya, Iraq
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25
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Abstract
Surface plasmons, which allow tight confinement of light, suffer from high intrinsic electronic losses. It has been shown that stimulated emission from excited electrons can transfer energy to plasmons and compensate for the high intrinsic losses. To-date, these realizations have relied on introducing an external gain media coupled to the surface plasmon. Here, we propose that plasmons in two-dimensional materials with closely located electron and hole Fermi pockets can be amplified, when an electrical current bias is applied along the displaced electron-hole pockets, without the need for an external gain media. As a prototypical example, we consider WTe2 from the family of 1T[Formula: see text]-MX2 materials, whose electronic structure can be described within a type-II tilted massive Dirac model. We find that the nonlocal plasmonic response experiences prominent gain for experimentally accessible currents on the order of mAμm-1. Furthermore, the group velocity of the plasmon found from the isofrequency curves imply that the amplified plasmons are highly collimated along a direction perpendicular to the Dirac node tilt when the electrical current is applied along it.
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26
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Hesami L, Yang C, Anwar E, Noginova N, Noginov MA. Effect of metal/dielectric substrates on photopolymerization of BITh thin films. Sci Rep 2022; 12:19109. [PMID: 36352053 PMCID: PMC9646767 DOI: 10.1038/s41598-022-23243-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 10/27/2022] [Indexed: 11/11/2022] Open
Abstract
We have studied effects of metal–dielectric substrates on photopolymerization of [2,2ʹ-Bi-1H-indene]-1,1ʹ-dione-3,3ʹ-diyl diheptanoate (BITh) monomer. We synthetized BITh and spin-coated it onto a variety of dielectric, metallic, and metal–dielectric substrates. The films were exposed to radiation of a UV–Visible Xe lamp, causing photo-polymerization of monomer molecules. The magnitude and the rate of the photo-polymerization were monitored by measuring the strength of the ~ 480 nm absorption band, which existed in the monomer but not in the polymer. Expectedly, the rate of photo-polymerization changed nearly linearly with the change of the pumping intensity. In contrast with our early study of photo-degradation of semiconducting polymer P3HT, the rate of photo-polymerization of BITh is getting modestly higher if the monomer film is deposited on top of silver separated from the monomer by a thin insulating MgF2 layer preventing a charge transfer. This effect is partly due to a constructive interference of the incident and reflected light waves, as well as known in the literature effects of metal/dielectric substrates on a variety of spectroscopic and energy transfer parameters. At the same time, the rate of photopolymerization is getting threefold larger if monomer is deposited on Ag film directly and charge transfer is allowed. Finally, Au substrates cause modest (~ 50%) enhancement of both monomer film absorption and the rate of photo-polymerization.
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27
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Yi J, de León-Pérez F, Cuche A, Devaux E, Genet C, Martín-Moreno L, Ebbesen TW. Origin of Zenneck-like waves excited by optical nanoantennas in non-plasmonic transition metals. OPTICS EXPRESS 2022; 30:34984-34997. [PMID: 36242501 DOI: 10.1364/oe.467692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/20/2022] [Indexed: 06/16/2023]
Abstract
The scattering properties of metallic optical antennas are typically examined through the lens of their plasmonic resonances. However, non-plasmonic transition metals also sustain surface waves in the visible. We experimentally investigate in this work the far-field diffraction properties of apertured optical antennas milled on non-plasmonic W films and compare the results with plasmonic references in Ag and Au. The polarization-dependent diffraction patterns and the leakage signal emerging from apertured antennas in both kinds of metals are recorded and analyzed. This thorough comparison with surface plasmon waves reveals that surface waves are launched on W and that they have the common abilities to confine the visible light at metal-dielectric interfaces offering the possibility to tailor the far-field emission. The results have been analyzed through theoretical models accounting for the propagation of a long range surface mode launched by subwavelength apertures, that is scattered in free space by the antenna. This surface mode on W can be qualitatively described as an analogy in the visible of the Zenneck wave in the radio regime. The nature of the new surface waves have been elucidated from a careful analysis of the asymptotic expansion of the electromagnetic propagators, which provides a convenient representation for explaining the Zenneck-like character of the excited waves and opens new ways to fundamental studies of surface waves at the nanoscale beyond plasmonics.
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28
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Stepikhova MV, Dyakov SA, Peretokin AV, Shaleev MV, Rodyakina EE, Novikov AV. Interaction of Ge(Si) Self-Assembled Nanoislands with Different Modes of Two-Dimensional Photonic Crystal. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12152687. [PMID: 35957118 PMCID: PMC9370173 DOI: 10.3390/nano12152687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 06/01/2023]
Abstract
The interaction of Ge(Si)/SOI self-assembled nanoislands with modes of photonic crystal slabs (PCS) with a hexagonal lattice is studied in detail. Appropriate selection of the PCS parameters and conditions for collecting the photoluminescence (PL) signal allowed to distinguish the PCS modes of different physical nature, particularly the radiative modes and modes associated to the bound states in the continuum (BIC). It is shown that the radiative modes with relatively low Q-factors could provide a increase greater than an order of magnitude in the integrated PL intensity in the wavelength range of 1.3-1.55 µm compared to the area outside of PCS at room temperature. At the same time, the interaction of Ge(Si) islands emission with the BIC-related modes provides the peak PL intensity increase of more than two orders of magnitude. The experimentally measured Q-factor of the PL line associated with the symmetry-protected BIC mode reaches the value of 2600.
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Affiliation(s)
- Margarita V. Stepikhova
- Institute for Physics of Microstructures Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia
| | - Sergey A. Dyakov
- Skolkovo Institute of Science and Technology, 143026 Moscow, Russia
| | - Artem V. Peretokin
- Institute for Physics of Microstructures Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia
- Radiophysical Department, Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia
| | - Mikhail V. Shaleev
- Institute for Physics of Microstructures Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia
| | - Ekaterina E. Rodyakina
- Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia
- Physical Department, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Alexey V. Novikov
- Institute for Physics of Microstructures Russian Academy of Sciences, 603950 Nizhny Novgorod, Russia
- Radiophysical Department, Lobachevsky State University of Nizhny Novgorod, 603950 Nizhny Novgorod, Russia
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29
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Gritchenko AS, Kalmykov AS, Kulnitskiy BA, Vainer YG, Wang SP, Kang B, Melentiev PN, Balykin VI. Ultra-bright and narrow-band emission from Ag atomic sized nanoclusters in a self-assembled plasmonic resonator. NANOSCALE 2022; 14:9910-9917. [PMID: 35781487 DOI: 10.1039/d2nr01650h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We have proposed, implemented and investigated a novel, efficient quantum emitter based on an atomic-sized Ag nanocluster in a plasmonic resonator. The quantum emitter enables the realization of: (1) ultra-bright fluorescence, (2) narrow-band emission down to 4 nm, (3) ultra-short fluorescence lifetime. The fluorescence cross-section of a quantum emitter is on the order of σ ∼ 10-14 cm2, which is comparable to the largest fluorescence cross-sections of dye molecules and quantum dots, and enables a light source with a record high intensity known only for plasmon nanolasers. The results presented suggest a unique method for fabricating nanoprobes with high brightness and wavelength-tunable spectrally narrow fluorescence, which is needed for multiplex diagnostics and detection of substances at extremely low concentrations.
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Affiliation(s)
| | | | - Boris A Kulnitskiy
- Technological Institute for Superhard and Novel Carbon Materials, Moscow, Troitsk 108840, Russia
- Moscow Institute of Physics and Technology, Moscow reg., Dolgoprudny, 141700, Russia
| | - Yuri G Vainer
- Institute of Spectroscopy RAS, Moscow, Troitsk 108840, Russia.
| | - Shao-Peng Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, P. R. China
| | - Bin Kang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing 210023, P. R. China
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30
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Inverse-cavity structure for low-threshold miniature lasers. Sci Rep 2022; 12:11333. [PMID: 35790768 PMCID: PMC9256698 DOI: 10.1038/s41598-022-15319-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/22/2022] [Indexed: 11/25/2022] Open
Abstract
Creating micro and nano lasers, high threshold gain is an inherent problem that have critically restricted their great technological potentials. Here, we propose an inverse-cavity laser structure where its threshold gain in the shortest-cavity regime is order-of-magnitude lower than the conventional cavity configurations. In the proposed structure, a resonant feedback mechanism efficiently transfers external optical gain to the cavity mode at a higher rate for a shorter cavity, hence resulting in the threshold gain reducing with decreasing cavity length in stark contrast to the conventional cavity structures. We provide a fundamental theory and rigorous numerical analyses confirming the feasibility of the proposed structure. Remarkably, the threshold gain reduces down by a factor ~ 10−3 for a vertical-cavity surface-emitting laser structure and ~ 0.17 for a lattice-plasmonic nanocavity structure. Therefore, the proposed approach may produce extremely efficient miniature lasers desirable for variety of applications potentially beyond the present limitations.
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31
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Shahid S, Talukder MA. Dual-wavelength hybrid Tamm plasmonic laser. OPTICS EXPRESS 2022; 30:25234-25248. [PMID: 36237058 DOI: 10.1364/oe.456249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 06/19/2022] [Indexed: 06/16/2023]
Abstract
Miniature lasers emitting dual-wavelength modes have diverse applications alongside the more explored single-mode counterparts. However, having dual-wavelength modes originating from a plasmonic-photonic hybrid laser is still a relatively new area for research. Compared to the amount of literature devoted to the physics of such hybrid cavities, only a few have analyzed their role in lasing applications. Notably, the role of hybrid cavities in dual-wavelength lasing is still unexplored. In this work, the properties of one-dimensional distributed Bragg reflectors and thin metal nanohole arrays come together to create a hybrid dual-mode plasmonic laser. The similar energy distribution characteristics of photonic and plasmonic lasers make hybrid structures a viable choice for efficient dual-mode lasing. In this work, the lasing cavity simultaneously excites photonic and Tamm plasmonic modes to generate dual-mode lasing. Consequently, the proposed laser shows high emission output with narrow linewidth and a clear and tunable mode separation.
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32
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Guan J, Park JE, Deng S, Tan MJH, Hu J, Odom TW. Light-Matter Interactions in Hybrid Material Metasurfaces. Chem Rev 2022; 122:15177-15203. [PMID: 35762982 DOI: 10.1021/acs.chemrev.2c00011] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This Review focuses on the integration of plasmonic and dielectric metasurfaces with emissive or stimuli-responsive materials for manipulating light-matter interactions at the nanoscale. Metasurfaces, engineered planar structures with rationally designed building blocks, can change the local phase and intensity of electromagnetic waves at the subwavelength unit level and offers more degrees of freedom to control the flow of light. A combination of metasurfaces and nanoscale emitters facilitates access to weak and strong coupling regimes for enhanced photoluminescence, nanoscale lasing, controlled quantum emission, and formation of exciton-polaritons. In addition to emissive materials, functional materials that respond to external stimuli can be combined with metasurfaces to engineer tunable nanophotonic devices. Emerging metasurface designs including surface-functionalized, chemically tunable, and multilayer hybrid metasurfaces open prospects for diverse applications, including photocatalysis, sensing, displays, and quantum information.
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33
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Towards Perfect Ultra-Broadband Absorbers, Ultra-Narrow Waveguides, and Ultra-Small Cavities at Optical Frequencies. NANOMATERIALS 2022; 12:nano12132132. [PMID: 35807967 PMCID: PMC9268687 DOI: 10.3390/nano12132132] [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: 05/24/2022] [Revised: 06/14/2022] [Accepted: 06/20/2022] [Indexed: 01/27/2023]
Abstract
In this study, we design ultra-broadband optical absorbers, ultra-narrow optical waveguides, and ultra-small optical cavities comprising two-dimensional metallic photonic crystals that tolerate fabrication imperfections such as position and radius disorderings. The absorbers containing gold rods show an absorption amplitude of more than 90% under 54% position disordering at 200<λ<530 nm. The absorbers containing silver rods show an absorptance of more than 90% under 54% position disordering at 200<λ<400 nm. B-type straight waveguides that contain four rows of silver rods exposed to air reveal normalized transmittances of 75% and 76% under 32% position and 60% radius disorderings, respectively. B-type L-shaped waveguides containing four rows of silver rods show 76% and 90% normalized transmittances under 32% position and 40% radius disorderings, respectively. B-type cavities containing two rings of silver rods reveal 70% and 80% normalized quality factors under 32% position and 60% radius disorderings, respectively.
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34
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Wang Y, Yang J, Wang Z, Kong X, Sun X, Tian J, Zhang X, Zhao X, Liu Y, Li H, Su Y, Hao X, Xu J. The Development and Progression of Micro-Nano Optics. Front Chem 2022; 10:916553. [PMID: 35795220 PMCID: PMC9251314 DOI: 10.3389/fchem.2022.916553] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/24/2022] [Indexed: 12/02/2022] Open
Abstract
Micro-Nano optics is one of the most active frontiers in the current development of optics. It combines the cutting-edge achievements of photonics and nanotechnology, which can realize many brand-new functions on the basis of local electromagnetic interactions and become an indispensable key science and technology of the 21st century. Micro-Nano optics is also an important development direction of the new optoelectronics industry at present. It plays an irreplaceable role in optical communication, optical interconnection, optical storage, sensing imaging, sensing measurement, display, solid-state lighting, biomedicine, security, green energy, and other fields. In this paper, we will summarize the research status of micro-nano optics, and analyze it from four aspects: micro-nano luminescent materials and devices, micro-nano optical waveguide materials and devices, micro-nano photoelectric detection materials and devices, and micro-nano optical structures and devices. Finally, the future development of micro-nano optics will be prospected.
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Affiliation(s)
- Yong Wang
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Jie Yang
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Zhiwei Wang
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Xiaofei Kong
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Xiangyu Sun
- Torch High Technology Industry Development Center, Ministry of Science and Technology, Beijing, China
| | - Jingjing Tian
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
| | - Xiushuo Zhang
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Xiaolong Zhao
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
| | - Yanping Liu
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Hongsheng Li
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Yuqing Su
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
- Qingdao Technology Innovation Center of Remote Sensing and Precise Measurement, Qingdao, China
| | - Xiaorui Hao
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
| | - Jing Xu
- Laboratory of Optical Detection and Imaging, School of Science, Qingdao University of Technology, Qingdao, China
- Quantum Physics Laboratory, School of Science, Qingdao University of Technology, Qingdao, China
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35
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Koulas-Simos A, Sinatkas G, Zhang T, Xu JL, Hayenga WE, Kan Q, Zhang R, Khajavikhan M, Ning CZ, Reitzenstein S. Extraction of silver losses at cryogenic temperatures through the optical characterization of silver-coated plasmonic nanolasers. OPTICS EXPRESS 2022; 30:21664-21678. [PMID: 36224880 DOI: 10.1364/oe.458513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/15/2022] [Indexed: 06/16/2023]
Abstract
We report on the extraction of silver losses in the range 10 K-180 K by performing temperature-dependent micro-photoluminescence measurements in conjunction with numerical simulations on silver-coated nanolasers around near-infrared telecommunication wavelengths. By mapping changes in the quality factor of nanolasers into silver-loss variations, the imaginary part of silver permittivity is extracted at cryogenic temperatures. The latter is estimated to reach values an order of magnitude lower than room-temperature values. Temperature-dependent values for the thermo-optic coefficient of III-V semiconductors occupying the cavity are estimated as well. This data is missing from the literature and is crucial for precise device modeling. Our results can be useful for device designing, the theoretical validation of experimental observations as well as the evaluation of thermal effects in silver-coated nanophotonic structures.
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36
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Yao F, Pei Y, Hou C, Sun X. Numerical study on a random plasmonic laser in the metal-insulator-metal structure. OPTICS LETTERS 2022; 47:2770-2773. [PMID: 35648926 DOI: 10.1364/ol.458103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
This Letter proposes a random plasmonic laser in the metal-insulator-metal (MIM) structure, in which the dielectric core with gain is dispersed with circular dielectric nanoscatterers. The numerical results from finite-difference time-domain simulation indicate that scattering by the randomly distributed dielectric nanoscatterers in the MIM waveguide provides feedback to the random laser with surface plasmon. The design bypasses the requirement of a distributed feedback structure for the plasmonic waveguide-based nanolasers, which is challenging and expensive in fabrication. Additionally, the MIM structure makes this type of random laser easily applicable to nanoscale integrated photonic devices and circuits.
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37
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Kupresak M, Zheng X, Mittra R, Vandenbosch GAE, Moshchalkov VV. Nonlocal response of plasmonic core-shell nanotopologies excited by dipole emitters. NANOSCALE ADVANCES 2022; 4:2346-2355. [PMID: 36133694 PMCID: PMC9419619 DOI: 10.1039/d1na00726b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 04/23/2022] [Indexed: 06/16/2023]
Abstract
In light of the emergence of nonclassical effects, a paradigm shift in the conventional macroscopic treatment is required to accurately describe the interaction between light and plasmonic structures with deep-nanometer features. Towards this end, several nonlocal response models, supplemented by additional boundary conditions, have been introduced, investigating the collective motion of the free electron gas in metals. The study of the dipole-excited core-shell nanoparticle has been performed, by employing the following models: the hard-wall hydrodynamic model; the quantum hydrodynamic model; and the generalized nonlocal optical response. The analysis is conducted by investigating the near and far field characteristics of the emitter-nanoparticle system, while considering the emitter outside and inside the studied topology. It is shown that the above models predict striking spectral features, strongly deviating from the results obtained via the classical approach, for both simple and noble constitutive metals.
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Affiliation(s)
- Mario Kupresak
- Department of Electrical Engineering, KU Leuven Kasteelpark Arenberg 10 Bus 2444 3001 Leuven Belgium
| | - Xuezhi Zheng
- Department of Electrical Engineering, KU Leuven Kasteelpark Arenberg 10 Bus 2444 3001 Leuven Belgium
| | - Raj Mittra
- Department of Electrical and Computer Engineering, University of Central Florida Orlando FL 32816-2993 USA
- Department of Electrical and Computer Engineering, King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Guy A E Vandenbosch
- Department of Electrical Engineering, KU Leuven Kasteelpark Arenberg 10 Bus 2444 3001 Leuven Belgium
| | - Victor V Moshchalkov
- Institute for Nanoscale Physics and Chemistry, KU Leuven Celestijnenlaan 200D 3001 Leuven Belgium
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38
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Operational regimes of lasers based on gain media with a large Raman scattering cross-section. Sci Rep 2022; 12:7588. [PMID: 35534608 PMCID: PMC9085860 DOI: 10.1038/s41598-022-11588-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Accepted: 04/25/2022] [Indexed: 11/11/2022] Open
Abstract
We report on unusual regimes of operation of a laser with a gain medium with a large Raman scattering cross-section, which is often inherent in new types of gain media such as colloidal and epitaxial quantum dots and perovskite materials. These media are characterized by a strong electron–phonon coupling. Using the Fröhlich Hamiltonian to describe the electron–phonon coupling in such media, we analyze the operation of the system above the lasing threshold. We show that below a critical value of the Fröhlich constant, the laser can only operate in the conventional regime: namely, there are coherent cavity photons but no coherent phonons. Above the critical value, a new pump rate threshold appears. Above this threshold, either joint self-oscillations of coherent phonons in the gain medium and photons in a cavity or a chaotic regime are established. We also find a range of the values of the Fröhlich constant, the pump rate, and the resonator eigenfrequency, in which more than one dynamical regime of the system is stable. In this case the laser dynamics is determined by the initial values of the resonator field, the active medium polarization, the population inversion, and phonon amplitude.
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39
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Enhanced Reflection of GaAs Nanowire Laser Using Short-Period, Symmetric Double Metal Grating Reflectors. NANOMATERIALS 2022; 12:nano12091482. [PMID: 35564191 PMCID: PMC9104391 DOI: 10.3390/nano12091482] [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: 03/13/2022] [Revised: 04/09/2022] [Accepted: 04/25/2022] [Indexed: 11/16/2022]
Abstract
Owing to the high contrast of the refractive indices at the end facets of a nanowire, lasing emission can be achieved in an individual nanowire without external, reflected feedback. However, the reflection provided by the end facet is not high enough to lower the threshold gain, especially for nanowires with smaller diameters. This work proposes a novel structure of nanowire laser partially sandwiched in double Ag gratings. Compared to a nanowire with a single metal grating or without a grating, the parallel double metal gratings play the reflector role with higher reflectivity to enhance the round-trip feedback and reduce the threshold gain. The reflective properties are calculated using the finite elements method. Simulation results show that a high reflectivity of more than 90% can be achieved when the number of periods is more than 8. The reflectivity of double gratings is 2.4 times larger than that of the nanowire end facet for large nanowire diameters. When the nanowire has a small diameter of 150 nm, the reflectivity of double gratings is 17 times larger than that of the nanowire end facet. Compared to a single grating, the reflective performance of double gratings is much better. Owing to the highly reflective properties of the double gratings, nanowires partially sandwiched in the double gratings can realize lasing emission at a very low threshold gain, and the period of the grating can be very short to benefit on-chip interconnection systems.
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40
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Henriques JCG, Antão TVC, Peres NMR. Laser induced enhanced coupling between photons and squeezed magnons in antiferromagnets. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2022; 34:245802. [PMID: 35420060 DOI: 10.1088/1361-648x/ac5f61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/21/2022] [Indexed: 06/14/2023]
Abstract
In this paper we consider a honeycomb antiferromagnet subject to an external laser field. Obtaining a time-independent effective Hamiltonian, we find that the external laser renormalizes the exchange interaction between the in-plane components of the spin-operators, and induces a synthetic Dzyaloshinskii-Moria interaction (DMI) between second neighbors. The former allows the control of the magnon dispersion's bandwidth and the latter breaks time-reversal symmetry inducing non-reciprocity in momentum space. The eigen-excitations of the system correspond to squeezed magnons whose squeezing parameters depend on the properties of the laser. When studying how these spin excitations couple with cavity photons, we obtain a coupling strength which can be enhanced by an order of magnitude via careful tuning of the laser's intensity, when compared to the case where the laser is absent. The transmission plots through the cavity are presented, allowing the mapping of the magnons' dispersion relation.
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Affiliation(s)
- J C G Henriques
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - T V C Antão
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - N M R Peres
- Department and Centre of Physics, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
- International Iberian Nanotechnology Laboratory (INL), Av. Mestre Jose Veiga, 4715-330 Braga, Portugal
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41
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Kupresak M, Zheng X, Mittra R, Sipus Z, Vandenbosch GAE, Moshchalkov VV. Single‐Molecule Fluorescence Enhancement by Plasmonic Core–Shell Nanostructures Incorporating Nonlocal Effects. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202100558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Mario Kupresak
- Department of Electrical Engineering KU Leuven Kasteelpark Arenberg 10 Leuven 3001 Belgium
| | - Xuezhi Zheng
- Department of Electrical Engineering KU Leuven Kasteelpark Arenberg 10 Leuven 3001 Belgium
| | - Raj Mittra
- Department of Electrical and Computer Engineering University of Central Florida Orlando FL 32816‐2993 USA
- Department of Electrical and Computer Engineering King Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Zvonimir Sipus
- Faculty of Electrical Engineering and Computing University of Zagreb Unska 3 Zagreb 10000 Croatia
| | - Guy A. E. Vandenbosch
- Department of Electrical Engineering KU Leuven Kasteelpark Arenberg 10 Leuven 3001 Belgium
| | - Victor V. Moshchalkov
- Institute for Nanoscale Physics and Chemistry KU Leuven Celestijnenlaan 200D Leuven 3001 Belgium
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42
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Doronin IV, Kalmykov AS, Zyablovsky AA, Andrianov ES, Khlebtsov BN, Melentiev PN, Balykin VI. Resonant Concentration-Driven Control of Dye Molecule Photodegradation via Strong Optical Coupling to Plasmonic Nanoparticles. NANO LETTERS 2022; 22:105-110. [PMID: 34910482 DOI: 10.1021/acs.nanolett.1c03277] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photobleaching is one of the basic chemical processes that occur naturally in organic molecules. In this work, we investigate the quantum dynamics of Cy 7.5 dye molecules optically coupled to Au nanorod particles and experimentally demonstrate the decrease of the photobleaching rate in this hybrid system. We discover the effect of a resonance-like behavior not observed before for any type of emitter─the photobleaching rate of the dye molecules reaches a minimum for a suitable number of molecules coupled to the nanoparticle. The manifestation of the effect is the consequence of shifts in the energy levels in the hybrid system caused by the change in the number of molecules coupled to a nanoparticle. The energy shifts are the prerequisite for the effective depopulation of the triplet level, which is responsible for the photodegradation mechanism. The discovered effect paves the way for increasing the efficiency of optoelectronic and photovoltaic devices.
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Affiliation(s)
- Ilya V Doronin
- Dukhov Research Institute of Automatics (VNIIA), 22 Sushchevskaya, Moscow 127055, Russia
- Moscow Institute of Physics and Technology, 9 Institutskiy per., Moscow 141700, Russia
- Institute for Theoretical and Applied Electromagnetics, 13 Izhorskaya, Moscow 125412, Russia
| | | | - Alexander A Zyablovsky
- Dukhov Research Institute of Automatics (VNIIA), 22 Sushchevskaya, Moscow 127055, Russia
- Moscow Institute of Physics and Technology, 9 Institutskiy per., Moscow 141700, Russia
- Institute for Theoretical and Applied Electromagnetics, 13 Izhorskaya, Moscow 125412, Russia
- Kotelnikov Institute of Radioengineering and Electronics RAS, 11-7 Mokhovaya, Moscow 125009, Russia
| | - Evgeny S Andrianov
- Dukhov Research Institute of Automatics (VNIIA), 22 Sushchevskaya, Moscow 127055, Russia
- Moscow Institute of Physics and Technology, 9 Institutskiy per., Moscow 141700, Russia
- Institute for Theoretical and Applied Electromagnetics, 13 Izhorskaya, Moscow 125412, Russia
| | - Boris N Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
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43
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Qian YJ, Liu H, Cao QT, Kullig J, Rong K, Qiu CW, Wiersig J, Gong Q, Chen J, Xiao YF. Regulated Photon Transport in Chaotic Microcavities by Tailoring Phase Space. PHYSICAL REVIEW LETTERS 2021; 127:273902. [PMID: 35061427 DOI: 10.1103/physrevlett.127.273902] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/02/2021] [Indexed: 06/14/2023]
Abstract
Manipulating light dynamics in optical microcavities has been made mainly either in real or momentum space. Here we report a phase-space tailoring scheme, simultaneously incorporating spatial and momentum dimensions, to enable deterministic and in situ regulation of photon transport in a chaotic microcavity. In the time domain, the chaotic photon transport to the leaky region can be suppressed, and the cavity resonant modes show stronger temporal confinement with quality factors being improved by more than 1 order of magnitude. In the spatial domain, the emission direction of the cavity field is controlled on demand through rerouting chaotic photons to a desired channel, which is verified experimentally by the far-field pattern of a quantum-dot microlaser. This work paves a way to in situ study of chaotic physics and promoting advanced applications such as arbitrary light routing, ultrafast random bit generation, and multifunctional on-chip lasers.
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Affiliation(s)
- Yan-Jun Qian
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
| | - Hui Liu
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
| | - Qi-Tao Cao
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
| | - Julius Kullig
- Institute for Physics, Otto von Guericke University Magdeburg, D-39016 Magdeburg, Germany
| | - Kexiu Rong
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, 4 Engineering Drive 3, Singapore 117583, Singapore
| | - Jan Wiersig
- Institute for Physics, Otto von Guericke University Magdeburg, D-39016 Magdeburg, Germany
| | - Qihuang Gong
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
| | - Jianjun Chen
- Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China
| | - Yun-Feng Xiao
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871 Beijing, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
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44
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Wang J, Wang S, Melentiev PN, Kang B, Xu J, Chen H. Photo‐stability and Photo‐damage of
SPASER
Nanoparticles under Nanosecond Pulsed‐laser. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jian‐Hua Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 China
| | - Shao‐Peng Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 China
| | - Pavel N. Melentiev
- Institute of Spectroscopy of the Russian Academy of Sciences Troitsk Moscow 108840 Russia
| | - Bin Kang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 China
| | - Jing‐Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering Nanjing University Nanjing Jiangsu 210023 China
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Wang X, Brunson K, Xie H, Colliard I, Wasson MC, Gong X, Ma K, Wu Y, Son FA, Idrees KB, Zhang X, Notestein JM, Nyman M, Farha OK. Heterometallic Ce IV/ V V Oxo Clusters with Adjustable Catalytic Reactivities. J Am Chem Soc 2021; 143:21056-21065. [PMID: 34873904 DOI: 10.1021/jacs.1c11208] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Heterometallic CeIV/M oxo clusters are underexplored yet and can benefit from synergistic properties from combining cerium and other metal cations to produce efficient redox catalysts. Herein, we designed and synthesized a series of new Ce12V6 oxo clusters with different capping ligands: Ce12V6-SO4, Ce12V6-OTs (OTs: toluenesulfonic acid), and Ce12V6-NBSA (NBSA: nitrobenzenesulfonic acid). Single crystal X-ray diffraction (SCXRD) for all three structures reveals a Ce12V6 cubane core formulated [Ce12(VO)6O24]18+ with cerium on the edges of the cube, vanadyl capping the faces, and sulfate on the corners. While infrared spectroscopy (IR), ultraviolet-visible spectroscopy (UV-vis), electrospray ionization mass spectrometry (ESI-MS), and proton nuclear magnetic resonance (1H NMR) proved the successful coordination of the organic ligands to the Ce12V6 core, liquid phase 51V NMR and small-angle X-ray scattering (SAXS) confirmed the integrity of the clusters in the organic solutions. Furthermore, functionalization of the Ce12V6 core with organic ligands both provides increased solubility in term of homogeneous application and introduces porosity to the assemblies of Ce12V6-OTs and Ce12V6-NBSA in term of heterogeneous application, thus allowing more catalytic sites to be accessible and improving reactivity as compared to the nonporous and less soluble Ce12V6-SO4. Meanwhile, the coordinated ligands also influenced the electronic environment of the catalytic sites, in turn affecting the reactivity of the cluster, which we probed by the selective oxidation of 2-chloroethyl ethyl sulfide (CEES). This work provides a strategy to make full use of the catalytic sites within a class of inorganic sulfate capped clusters via organic ligand introduction.
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Affiliation(s)
- Xingjie Wang
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kieran Brunson
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Haomiao Xie
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Ian Colliard
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Megan C Wasson
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xinyi Gong
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kaikai Ma
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Yufang Wu
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Florencia A Son
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Karam B Idrees
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xuan Zhang
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Justin M Notestein
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - May Nyman
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Omar K Farha
- International Institute for Nanotechnology and Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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46
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Yang K, Yao X, Liu B, Ren B. Metallic Plasmonic Array Structures: Principles, Fabrications, Properties, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007988. [PMID: 34048123 DOI: 10.1002/adma.202007988] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 02/22/2021] [Indexed: 05/18/2023]
Abstract
The vast development of nanofabrication has spurred recent progress for the manipulation of light down to a region much smaller than the wavelength. Metallic plasmonic array structures are demonstrated to be the most powerful platform to realize controllable light-matter interactions and have found wide applications due to their rich and tunable optical performance through the morphology and parameter engineering. Here, various light-management mechanisms that may exist on metallic plasmonic array structures are described. Then, the typical techniques for fabrication of metallic plasmonic arrays are summarized. Next, some recent applications of plasmonic arrays are reviewed, including plasmonic sensing, surface-enhanced spectroscopies, plasmonic nanolasing, and perfect light absorption. Lastly, the existing challenges and perspectives for metallic plasmonic arrays are discussed. The aim is to provide guidance for future development of metallic plasmonic array structures.
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Affiliation(s)
- Kang Yang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xu Yao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Bowen Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Bin Ren
- State Key Laboratory of Physical Chemistry of Solid Surfaces, The MOE Key Laboratory of Spectrochemical Analysis and Instrumentation, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
- Innovation Laboratory for Sciences and Technologies of Energy Materials of Fujian Province (IKKEM), Xiamen, 361005, China
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47
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Gong M, Jiang D, Tao T, Chen F, Xu C, Zhi T, Liu W, Liu B, Zhang R, Zheng Y. Surface plasmon coupling regulated CsPbBr 3 perovskite lasers in a metal-insulator-semiconductor structure. RSC Adv 2021; 11:37218-37224. [PMID: 35496410 PMCID: PMC9043819 DOI: 10.1039/d1ra06828h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Accepted: 11/08/2021] [Indexed: 11/21/2022] Open
Abstract
A strong coupling effect often occurs between a metal and semiconductor, so micro/nano-lasers based on surface plasmons can break through the optical diffraction limit and realize unprecedented linear and nonlinear enhancement of optical processes. Hence, metal–insulator–semiconductor (M–I–S) structures based on perovskite materials were explored to design optoelectronic devices. Herein, we constructed an Ag/SiO2/CsPbBr3 hybrid structure to generate surface plasmon coupled emission between the metal and CsPbBr3 perovskite. Combined with experimental characterization and COMSOL Multiphysics software simulations, the best enhancement for CsPbBr3 radiative recombination efficiencies can be achieved with a 10 nm-thickness of the SiO2 layer and 80 nm-thickness of the Ag metal film, further verified by optimizing the thickness of the SiO2 layer above the Ag metal film. In this state, the laser threshold can be as low as 0.138 μW with a quality (Q) factor of up to 3907 under optical pumping, which demonstrate a significant step toward practical applications in biological technology, chemical identification, and optical interconnections of information transmission. A strong coupling effect often occurs between a metal and semiconductor, so micro/nano-lasers based on surface plasmons can break through the optical diffraction limit and realize unprecedented linear and nonlinear enhancement of optical processes.![]()
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Affiliation(s)
- Maogao Gong
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
| | - Di Jiang
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
| | - Tao Tao
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
| | - Feng Chen
- School of Physical and Mathematical Sciences, Nanjing Tech University Nanjing 211800 P. R. China
| | - Chunxiang Xu
- State Key Laboratory of Bioelectronics, School of Biological Sciences and Medical Engineering, Southeast University Nanjing 210096 P. R. China
| | - Ting Zhi
- School of Electronic Science and Engineering, Nanjing University of Posts and Telecommunications Nanjing 210023 P. R. China
| | - Wei Liu
- College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University Hangzhou 311300 P. R. China
| | - Bin Liu
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
| | - Rong Zhang
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
| | - Youdou Zheng
- Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, Nanjing National Laboratory of Microstructures, Nanjing University Nanjing 210093 P. R. China
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48
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Gothe PK, Martinez A, Koh SJ. Effect of Ionic Strength, Nanoparticle Surface Charge Density, and Template Diameter on Self-Limiting Single-Particle Placement: A Numerical Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11961-11977. [PMID: 34610743 DOI: 10.1021/acs.langmuir.1c01375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
For the bottom-up approach where functional materials are constructed out of nanoscale building blocks (e.g., nanoparticles), it is essential to have methods that are capable of placing the individual nanoscale building blocks onto exact substrate positions on a large scale and on a large area. One of the promising placement methods is the self-limiting single-particle placement (SPP), in which a single nanoparticle in a colloidal solution is electrostatically guided by electrostatic templates and exactly one single nanoparticle is placed on each target position in a self-limiting way. This paper presents a numerical study on SPP, where the effects of three key parameters, (1) ionic strength (IS), (2) nanoparticle surface charge density (σNP), and (3) circular template diameter (d), on SPP are investigated. For 40 different parameter sets of (IS, σNP, d), a 30 nm nanoparticle positioned at R⃗ above the substrate was modeled in two configurations (i) without and (ii) with the presence of a 30 nm nanoparticle at the center of a circular template. For each parameter set and each configuration, the electrostatic potentials were calculated by numerically solving the Poisson-Boltzmann equation, from which interaction forces and interaction free energies were subsequently calculated. These have identified realms of parameter sets that enable a successful SPP. A few exemplary parameter sets include (IS, σNP, d) = (0.5 mM, -1.5 μC/cm2, 100 nm), (0.05 mM, -0.5 μC/cm2, 100 nm), (0.5 mM, -1.5 μC/cm2, 150 nm), and (0.05 mM, -0.8 μC/cm2, 150 nm). This study provides clear guidance toward experimental realizations of large-scale and large-area SPPs, which could lead to bottom-up fabrications of novel electronic, photonic, plasmonic, and spintronic devices and sensors.
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Affiliation(s)
- Pushkar K Gothe
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Anthony Martinez
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Seong Jin Koh
- Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, Texas 76019, United States
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Dong J, Feng H, Wang X, Chen S, Wang S, Zhang C, Liu Q. Transverse and longitudinal coupling of LSPPs in isolated triangular Al-SiO 2-Al hybrid nanoplates for generation of local electromagnetic fields with enhanced intensity and increased decay time. NANOTECHNOLOGY 2021; 32:505708. [PMID: 34530404 DOI: 10.1088/1361-6528/ac2767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Achieving a large enhancement of local electromagnetic fields in the ultraviolet waveband is desirable for some applications such as surface-enhanced Raman scattering and surface-enhanced fluorescence. In addition, it is more significant for some applications such as plasmon-enhanced harmonic generation to enhance the intensity of local electromagnetic fields and increase their decay time at the same time. In this paper, using the finite-difference time-domain method, we numerically demonstrate that using the linearly polarized light with a wavelength of 325 nm as the illumination light, an isolated triangular Al-SiO2-Al hybrid nanoplate with optimized geometric parameters can produce a local electric field enhanced by a factor of about 108 at one of its top apexes, and produce two local electric fields enhanced by a factor of about 150 at two transverse dielectric/metal interfaces of one of its longitudinal side edges. Moreover, we also numerically demonstrate that the decay time of enhanced local electric fields produced by the isolated triangular Al-SiO2-Al hybrid nanoplate is about 1.6 times as large as that of enhanced local electric fields produced by an isolated triangular Al nanoplate. These unique properties of the isolated triangular Al-SiO2-Al hybrid nanoplate arise because of both the transverse coupling and the longitudinal coupling of localized surface plasmon polaritons in this structure. Our findings make triangular Al-SiO2-Al hybrid nanoplates very promising for application in many fields such as surface-enhanced Raman scattering and plasmon-enhanced harmonic generation.
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Affiliation(s)
- Jianjie Dong
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
| | - Huimin Feng
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
- School of Astronautics, Beihang University, Beijing 100191, People's Republic of China
| | - Xiaofeng Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Shengyao Chen
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Shu Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Chen Zhang
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
| | - Qian Liu
- Chinese Academy of Sciences (CAS) Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
- University of Chinese Academy of Science, Beijing 100049, People's Republic of China
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50
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Gu P, Guo Y, Chen J, Zhang Z, Yan Z, Liu F, Tang C, Du W, Chen Z. Multiple Sharp Fano Resonances in a Deep-Subwavelength Spherical Hyperbolic Metamaterial Cavity. NANOMATERIALS 2021; 11:nano11092301. [PMID: 34578616 PMCID: PMC8468699 DOI: 10.3390/nano11092301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 08/31/2021] [Accepted: 09/03/2021] [Indexed: 11/16/2022]
Abstract
We theoretically study the multiple sharp Fano resonances produced by the near-field coupling between the multipolar narrow plasmonic whispering-gallery modes (WGMs) and the broad-sphere plasmon modes supported by a deep-subwavelength spherical hyperbolic metamaterial (HMM) cavity, which is constructed by five alternating silver/dielectric layers wrapping a dielectric nanosphere core. We find that the linewidths of WGMs-induced Fano resonances are as narrow as 7.4–21.7 nm due to the highly localized feature of the electric fields. The near-field coupling strength determined by the resonant energy difference between WGMs and corresponding sphere plasmon modes can lead to the formation of the symmetric-, asymmetric-, and typical Fano lineshapes in the far-field extinction efficiency spectrum. The deep-subwavelength feature of the proposed HMM cavity is verified by the large ratio (~5.5) of the longest resonant wavelength of WGM1,1 (1202.1 nm) to the cavity size (diameter: 220 nm). In addition, the resonant wavelengths of multiple Fano resonances can be easily tuned by adjusting the structural/material parameters (the dielectric core radius, the thickness and refractive index of the dielectric layers) of the HMM cavity. The narrow linewidth, multiple, and tunability of the observed Fano resonances, together with the deep-subwavelength feature of the proposed HMM cavity may create potential applications in nanosensors and nanolasers.
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Affiliation(s)
- Ping Gu
- Institute of Advanced Photonics Technology, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (P.G.); (Y.G.); (J.C.); (Z.Z.)
| | - Yuheng Guo
- Institute of Advanced Photonics Technology, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (P.G.); (Y.G.); (J.C.); (Z.Z.)
| | - Jing Chen
- Institute of Advanced Photonics Technology, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (P.G.); (Y.G.); (J.C.); (Z.Z.)
| | - Zuxing Zhang
- Institute of Advanced Photonics Technology, College of Electronic and Optical Engineering & College of Microelectronics, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (P.G.); (Y.G.); (J.C.); (Z.Z.)
| | - Zhendong Yan
- School of Science, Nanjing Forestry University, Nanjing 210037, China;
| | - Fanxin Liu
- School of Science, Zhejiang University of Technology, Hangzhou 310023, China;
| | - Chaojun Tang
- School of Science, Zhejiang University of Technology, Hangzhou 310023, China;
- Correspondence: (C.T.); (Z.C.)
| | - Wei Du
- School of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China;
- National Laboratory of Solid State Microstructures, Schoolof Physics, Nanjing University, Nanjing 210093, China
| | - Zhuo Chen
- National Laboratory of Solid State Microstructures, Schoolof Physics, Nanjing University, Nanjing 210093, China
- Correspondence: (C.T.); (Z.C.)
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