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Lv H, Zhang Q, Liu J, Si G, Gong Y, Zhong G, Zhang Y, Qiu CW, Ou Q, Yang Y. Tailoring Phonon Polaritons with a Single-Layer Photonics-Empowered Polaritonic Crystal. NANO LETTERS 2025; 25:4946-4953. [PMID: 40079332 DOI: 10.1021/acs.nanolett.5c00281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/15/2025]
Abstract
Photonic crystals (PhCs) are artificial periodic structures that can compress and control light at the nanoscale. Recently, the emerging van der Waals (vdW) materials with extreme anisotropy exhibit exotic hyperbolic phonon resonances and ray-like propagation. However, localization and manipulation of these hyperbolic phonon polaritons (PhPs) in polaritonic crystals (PoCs) on a scale deeply below the polariton wavelength have remained elusive so far. Here, we experimentally demonstrate tailored PhP localization in a single layer PoC of patterned α-MoO3. The biaxial PoCs have a rotation degree of freedom between the lattice orientation and the optical axis of α-MoO3. By tailoring the rotation angle, the bandgap exhibits a transition from open to closed at certain wavelengths. Two-dimensional localization of PhPs in these rotated PoCs have been directly revealed in real space by infrared nanoimaging. Our work provides a robust platform to construct polaritonic cavities for ultrastrong light-matter interactions and nanoscale polariton manipulation.
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Affiliation(s)
- Haoran Lv
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Qing Zhang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jingying Liu
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao 999078, China
- Macau University of Science and Technology Zhuhai MUST Science and Technology Research Institute, Zhuhai, 519099, China
| | - Guangyuan Si
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, Victoria 3168, Australia
| | - Youning Gong
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
| | - Gang Zhong
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao 999078, China
| | - Yupeng Zhang
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen 518060, China
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Qingdong Ou
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao 999078, China
- Macau University of Science and Technology Zhuhai MUST Science and Technology Research Institute, Zhuhai, 519099, China
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria 3800, Australia
| | - Yuanjie Yang
- School of Physics, University of Electronic Science and Technology of China, Chengdu 611731, China
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2
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Menabde SG, Lim Y, Voronin K, Heiden JT, Nikitin AY, Lee S, Jang MS. Polaritonic Fourier crystal. Nat Commun 2025; 16:2530. [PMID: 40087277 PMCID: PMC11909173 DOI: 10.1038/s41467-025-57748-z] [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: 10/14/2024] [Accepted: 03/03/2025] [Indexed: 03/17/2025] Open
Abstract
Polaritonic crystals - periodic structures where the hybrid light-matter waves called polaritons can form Bloch states - promise a deeply subdiffractional nanolight manipulation and enhanced light-matter interaction. In particular, polaritons in van der Waals materials boast extreme field confinement and long lifetimes allowing for the exploitation of wave phenomena at the nanoscale. However, in conventionally patterned nanostructures, polaritons are prone to severe scattering loss at the sharp material edges, making it challenging to create functional polaritonic crystals. Here, we introduce a concept of a polaritonic Fourier crystal based on a harmonic modulation of the polariton momentum in a pristine polaritonic waveguide with minimal scattering. We employ hexagonal boron nitride (hBN) and near-field imaging to reveal a neat and well-defined band structure of phonon-polaritons in the Fourier crystal, stemming from the dominant excitation of the first-order Bloch mode. Furthermore, we show that the fundamental Bloch mode possesses a polaritonic bandgap even in the relatively lossy naturally abundant hBN. Thus, our work provides an alternative paradigm for polaritonic crystals essential for enhanced light-matter interaction, dispersion engineering, and nanolight guiding.
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Affiliation(s)
- Sergey G Menabde
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Yongjun Lim
- Department of Biomicrosystem Technology, Korea University, Seoul, Korea
| | - Kirill Voronin
- Donostia International Physics Center (DIPC), Donostia-San Sebastián, Spain
- Universidad del Pais Vasco/Euskal Herriko Unibertsitatea, Donostia-San Sebastián, Spain
| | - Jacob T Heiden
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - Alexey Y Nikitin
- Donostia International Physics Center (DIPC), Donostia-San Sebastián, Spain.
- IKERBASQUE, Basque Foundation for Science, Bilbao, Spain.
| | - Seungwoo Lee
- Department of Biomicrosystem Technology, Korea University, Seoul, Korea.
- Department of Integrative Energy Engineering, KU-KIST Graduate School of Converging Science and Technology, and KU Photonics Center, Korea University, Seoul, Korea.
- Center for Opto-Electronic Materials and Devices, Post-Silicon Semiconductor Institute, Korea Institute of Science and Technology (KIST), Seoul, Korea.
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea.
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3
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Niemann R, Mueller NS, Wasserroth S, Lu G, Wolf M, Caldwell JD, Paarmann A. Spectroscopic and Interferometric Sum-Frequency Imaging of Strongly Coupled Phonon Polaritons in SiC Metasurfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312507. [PMID: 38895889 DOI: 10.1002/adma.202312507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 06/07/2024] [Indexed: 06/21/2024]
Abstract
Phonon polaritons enable waveguiding and localization of infrared light with extreme confinement and low losses. The spatial propagation and spectral resonances of such polaritons are usually probed with complementary techniques such as near-field optical microscopy and far-field reflection spectroscopy. Here, infrared-visible sum-frequency spectro-microscopy is introduced as a tool for spectroscopic imaging of phonon polaritons. The technique simultaneously provides sub-wavelength spatial resolution and highly-resolved spectral resonance information. This is implemented by resonantly exciting polaritons using a tunable infrared laser and wide-field microscopic detection of the upconverted light. The technique is employed to image hybridization and strong coupling of localized and propagating surface phonon polaritons in a metasurface of SiC micropillars. Spectro-microscopy allows to measure the polariton dispersion simultaneously in momentum space by angle-dependent resonance imaging, and in real space by polariton interferometry. Notably, it is possible to directly image how strong coupling affects the spatial localization of polaritons, inaccessible with conventional spectroscopic techniques. The formation of edge states is observed at excitation frequencies where strong coupling prevents polariton propagation into the metasurface. The technique is applicable to the wide range of polaritonic materials with broken inversion symmetry and can be used as a fast and non-perturbative tool to image polariton hybridization and propagation.
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Affiliation(s)
- Richarda Niemann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Niclas S Mueller
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Sören Wasserroth
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Guanyu Lu
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Present address: Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Martin Wolf
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
| | - Joshua D Caldwell
- Department of Mechanical Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Interdisciplinary Materials Science Graduate Program, Vanderbilt University, Nashville, TN 37235, USA
| | - Alexander Paarmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195, Berlin, Germany
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4
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Xie Q, Zhang Y, Janzen E, Edgar JH, Xu XG. Atomic-force-microscopy-based time-domain two-dimensional infrared nanospectroscopy. NATURE NANOTECHNOLOGY 2024; 19:1108-1115. [PMID: 38750165 DOI: 10.1038/s41565-024-01670-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 04/02/2024] [Indexed: 05/23/2024]
Abstract
For decades, infrared (IR) spectroscopy has advanced on two distinct frontiers: enhancing spatial resolution and broadening spectroscopic information. Although atomic force microscopy (AFM)-based IR microscopy overcomes Abbe's diffraction limit and reaches sub-10 nm spatial resolutions, time-domain two-dimensional IR spectroscopy (2DIR) provides insights into molecular structures, mode coupling and energy transfers. Here we bridge the boundary between these two techniques and develop AFM-2DIR nanospectroscopy. Our method offers the spatial precision of AFM in combination with the rich spectroscopic information provided by 2DIR. This approach mechanically detects the sample's photothermal responses to a tip-enhanced femtosecond IR pulse sequence and extracts spatially resolved spectroscopic information via FFTs. In a proof-of-principle experiment, we elucidate the anharmonicity of a carbonyl vibrational mode. Further, leveraging the near-field photons' high momenta from the tip enhancement for phase matching, we photothermally probe hyperbolic phonon polaritons in isotope-enriched h10BN. Our measurements unveil an energy transfer between phonon polaritons and phonons, as well as among different polariton modes, possibly aided by scattering at interfaces. The AFM-2DIR nanospectroscopy enables the in situ investigations of vibrational anharmonicity, coupling and energy transfers in heterogeneous materials and nanostructures, especially suitable for unravelling the relaxation process in two-dimensional materials at IR frequencies.
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Affiliation(s)
- Qing Xie
- Department of Chemistry, Lehigh University, Bethlehem, PA, US
| | - Yu Zhang
- Ames National Laboratory, Iowa State University, Ames, IA, US
| | - Eli Janzen
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, US
| | - James H Edgar
- Tim Taylor Department of Chemical Engineering, Kansas State University, Manhattan, KS, US
| | - Xiaoji G Xu
- Department of Chemistry, Lehigh University, Bethlehem, PA, US.
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Ling H, Nourbakhsh M, Whiteside VR, Tischler JG, Davoyan AR. Near-Unity Light-Matter Interaction in Mid-Infrared van der Waals Metasurfaces. NANO LETTERS 2024; 24:3315-3322. [PMID: 38452251 DOI: 10.1021/acs.nanolett.3c04118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
Accessing mid-infrared radiation is of great importance for a range of applications, including thermal imaging, sensing, and radiative cooling. Here, we study light interaction with hexagonal boron nitride (hBN) nanocavities and reveal strong and tunable resonances across its hyperbolic transition. In addition to conventional phonon-polariton excitations, we demonstrate that the high refractive index of hexagonal boron nitride outside the Reststrahlen band allows enhanced light-matter interactions in deep subwavelength (<λ/15) nanostructures across a broad 7-8 μm range. Emergence and interplay of Fabry-Perot and Mie-like resonances are examined experimentally and theoretically. Near-unity absorption and high quality (Q ≥ 80) resonance interaction in the vicinity of the hBN transverse optical phonon is further observed. Our study provides avenues to design highly efficient and ultracompact structures for controlling mid-infrared radiation and accessing strong light-matter interactions with hBN.
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Affiliation(s)
- Haonan Ling
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
| | - Milad Nourbakhsh
- Deven Energy Hall, School of Electrical and Computer Engineering, University of Oklahoma, 110 W. Boyd Street, Norman, Oklahoma 73019, United States
| | - Vincent R Whiteside
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, United States
| | - Joseph G Tischler
- Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, 440 West Brooks Street, Norman, Oklahoma 73019, United States
| | - Artur R Davoyan
- Department of Mechanical and Aerospace Engineering, University of California, Los Angeles, California 90095, United States
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Lv J, Wu Y, Liu J, Gong Y, Si G, Hu G, Zhang Q, Zhang Y, Tang JX, Fuhrer MS, Chen H, Maier SA, Qiu CW, Ou Q. Hyperbolic polaritonic crystals with configurable low-symmetry Bloch modes. Nat Commun 2023; 14:3894. [PMID: 37393303 DOI: 10.1038/s41467-023-39543-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 06/17/2023] [Indexed: 07/03/2023] Open
Abstract
Photonic crystals (PhCs) are a kind of artificial structures that can mold the flow of light at will. Polaritonic crystals (PoCs) made from polaritonic media offer a promising route to controlling nano-light at the subwavelength scale. Conventional bulk PhCs and recent van der Waals PoCs mainly show highly symmetric excitation of Bloch modes that closely rely on lattice orders. Here, we experimentally demonstrate a type of hyperbolic PoCs with configurable and low-symmetry deep-subwavelength Bloch modes that are robust against lattice rearrangement in certain directions. This is achieved by periodically perforating a natural crystal α-MoO3 that hosts in-plane hyperbolic phonon polaritons. The mode excitation and symmetry are controlled by the momentum matching between reciprocal lattice vectors and hyperbolic dispersions. We show that the Bloch modes and Bragg resonances of hyperbolic PoCs can be tuned through lattice scales and orientations while exhibiting robust properties immune to lattice rearrangement in the hyperbolic forbidden directions. Our findings provide insights into the physics of hyperbolic PoCs and expand the categories of PhCs, with potential applications in waveguiding, energy transfer, biosensing and quantum nano-optics.
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Affiliation(s)
- Jiangtao Lv
- College of Information Science and Engineering, Northeastern University, Shenyang, 110004, China
- School of Control Engineering, Hebei Key Laboratory of Micro-Nano Precision Optical Sensing and Measurement Technology, Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
| | - Yingjie Wu
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, China.
| | - Jingying Liu
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao, 999078, China
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia
| | - Youning Gong
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Guangyuan Si
- Melbourne Centre for Nanofabrication, Victorian Node of the Australian National Fabrication Facility, Clayton, 3168, VIC, Australia
| | - Guangwei Hu
- School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Qing Zhang
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Yupeng Zhang
- State Key Laboratory of Radio Frequency Heterogeneous Integration, College of Electronics and Information Engineering, Shenzhen University, Shenzhen, 518060, China
| | - Jian-Xin Tang
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao, 999078, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Jiangsu, 215123, China
| | - Michael S Fuhrer
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, 3800, Australia
- School of Physics and Astronomy, Monash University, Clayton, VIC, 3800, Australia
| | - Hongsheng Chen
- ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou, 311215, China
| | - Stefan A Maier
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, 3800, Australia
- School of Physics and Astronomy, Monash University, Clayton, VIC, 3800, Australia
- Department of Physics, Imperial College London, London, SW7 2AZ, UK
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583, Singapore.
| | - Qingdong Ou
- Macao Institute of Materials Science and Engineering (MIMSE), Faculty of Innovation Engineering, Macau University of Science and Technology, Taipa, Macao, 999078, China.
- Department of Materials Science and Engineering, Monash University, Clayton, Victoria, 3800, Australia.
- ARC Centre of Excellence in Future Low-Energy Electronics Technologies, Monash University, Clayton, VIC, 3800, Australia.
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7
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Herzig Sheinfux H, Jung M, Orsini L, Ceccanti M, Mahalanabish A, Martinez-Cercós D, Torre I, Barcons Ruiz D, Janzen E, Edgar JH, Pruneri V, Shvets G, Koppens FHL. Transverse Hypercrystals Formed by Periodically Modulated Phonon Polaritons. ACS NANO 2023; 17:7377-7383. [PMID: 37010352 DOI: 10.1021/acsnano.2c11497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Photonic crystals and metamaterials are two overarching paradigms for manipulating light. By combining these approaches, hypercrystals can be created, which are hyperbolic dispersion metamaterials that undergo periodic modulation and mix photonic-crystal-like aspects with hyperbolic dispersion physics. Despite several attempts, there has been limited experimental realization of hypercrystals due to technical and design constraints. In this work, hypercrystals with nanoscale lattice constants ranging from 25 to 160 nm were created. The Bloch modes of these crystals were then measured directly using scattering near-field microscopy. The dispersion of the Bloch modes was extracted from the frequency dependence of the Bloch modes, revealing a clear switch from positive to negative group velocity. Furthermore, spectral features specific to hypercrystals were observed in the form of sharp density of states peaks, which are a result of intermodal coupling and should not appear in ordinary polaritonic crystals with an equivalent geometry. These findings are in agreement with theoretical predictions that even simple lattices can exhibit a rich hypercrystal bandstructure. This work is of both fundamental and practical interest, providing insight into nanoscale light-matter interactions and the potential to manipulate the optical density of states.
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Affiliation(s)
| | - Minwoo Jung
- Department of Physics, Cornell University, Ithaca, New York 14853, United States
| | - Lorenzo Orsini
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
| | - Matteo Ceccanti
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
| | - Aditya Mahalanabish
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, United States
| | | | - Iacopo Torre
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
| | - David Barcons Ruiz
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
| | - Eli Janzen
- Tim Taylor Department of Chemical Engineering, Kansas State University, Durland Hall, Manhattan, Kansas 66506-5102, United States
| | - James H Edgar
- Tim Taylor Department of Chemical Engineering, Kansas State University, Durland Hall, Manhattan, Kansas 66506-5102, United States
| | - Valerio Pruneri
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
| | - Gennady Shvets
- School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, United States
| | - Frank H L Koppens
- ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels, Barcelona, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, 08010 Barcelona, Spain
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8
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Cortés E, Wendisch FJ, Sortino L, Mancini A, Ezendam S, Saris S, de S. Menezes L, Tittl A, Ren H, Maier SA. Optical Metasurfaces for Energy Conversion. Chem Rev 2022; 122:15082-15176. [PMID: 35728004 PMCID: PMC9562288 DOI: 10.1021/acs.chemrev.2c00078] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Nanostructured surfaces with designed optical functionalities, such as metasurfaces, allow efficient harvesting of light at the nanoscale, enhancing light-matter interactions for a wide variety of material combinations. Exploiting light-driven matter excitations in these artificial materials opens up a new dimension in the conversion and management of energy at the nanoscale. In this review, we outline the impact, opportunities, applications, and challenges of optical metasurfaces in converting the energy of incoming photons into frequency-shifted photons, phonons, and energetic charge carriers. A myriad of opportunities await for the utilization of the converted energy. Here we cover the most pertinent aspects from a fundamental nanoscopic viewpoint all the way to applications.
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Affiliation(s)
- Emiliano Cortés
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Fedja J. Wendisch
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Luca Sortino
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Andrea Mancini
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Simone Ezendam
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Seryio Saris
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Leonardo de S. Menezes
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
- Departamento
de Física, Universidade Federal de
Pernambuco, 50670-901 Recife, Pernambuco, Brazil
| | - Andreas Tittl
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
| | - Haoran Ren
- MQ Photonics
Research Centre, Department of Physics and Astronomy, Macquarie University, Macquarie
Park, New South Wales 2109, Australia
| | - Stefan A. Maier
- Chair
in Hybrid Nanosystems, Nano Institute Munich, Faculty of Physics, Ludwig-Maximilians-University Munich, Königinstraße 10, 80539 Munich, Germany
- School
of Physics and Astronomy, Monash University, Clayton, Victoria 3800, Australia
- Department
of Phyiscs, Imperial College London, London SW7 2AZ, United Kingdom
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9
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Menabde SG, Heiden JT, Cox JD, Mortensen NA, Jang MS. Image polaritons in van der Waals crystals. NANOPHOTONICS (BERLIN, GERMANY) 2022; 11:2433-2452. [PMID: 39635681 PMCID: PMC11501350 DOI: 10.1515/nanoph-2021-0693] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 12/15/2021] [Indexed: 12/07/2024]
Abstract
Polaritonic modes in low-dimensional materials enable strong light-matter interactions and the manipulation of light on nanometer length scales. Very recently, a new class of polaritons has attracted considerable interest in nanophotonics: image polaritons in van der Waals crystals, manifesting when a polaritonic material is in close proximity to a highly conductive metal, so that the polaritonic mode couples with its mirror image. Image modes constitute an appealing nanophotonic platform, providing an unparalleled degree of optical field compression into nanometric volumes while exhibiting lower normalized propagation loss compared to conventional polariton modes in van der Waals crystals on nonmetallic substrates. Moreover, the ultra-compressed image modes provide access to the nonlocal regime of light-matter interaction. In this review, we systematically overview the young, yet rapidly growing, field of image polaritons. More specifically, we discuss the dispersion properties of image modes, showcase the diversity of the available polaritons in various van der Waals materials, and highlight experimental breakthroughs owing to the unique properties of image polaritons.
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Affiliation(s)
- Sergey G. Menabde
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, Korea
| | - Jacob T. Heiden
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, Korea
| | - Joel D. Cox
- Center for Nano Optics, University of Southern Denmark, DK-5230Odense, Denmark
- Danish Institute for Advanced Study, University of Southern Denmark, DK-5230Odense, Denmark
| | - N. Asger Mortensen
- Center for Nano Optics, University of Southern Denmark, DK-5230Odense, Denmark
- Danish Institute for Advanced Study, University of Southern Denmark, DK-5230Odense, Denmark
- Center for Nanostructured Graphene, Technical University of Denmark, DK-2800Kongens Lyngby, Denmark
| | - Min Seok Jang
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon34141, Korea
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