Review
Materials Science, Multidisciplinary
Ke Bi, Qingmin Wang, Jianchun Xu, Lihao Chen, Chuwen Lan, Ming Lei
Summary: All-dielectric metamaterials are a rapidly developing research hotspot in the field of metamaterials, offering low loss and design freedom. The proper choice of fabrication technique is crucial for efficient electromagnetic manipulation. This overview discusses existing fabrication techniques, including methods for different frequency bands and their respective advantages and disadvantages.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Miao Cao, Xiaojun Huang, Lina Gao, Xiaoyan Li, Linyan Guo, Helin Yang
Summary: A transparent all-dielectric water-based broadband metamaterial absorber with excellent performance and stability has been designed, which can be widely used in stealth window weapons and electromagnetic compatibility equipment.
Article
Materials Science, Multidisciplinary
Feng Lan, Zi-Fan Meng, Jiu-Fu Ruan, Rui-Zhi Zou, Sheng-Wei Ji
Summary: The study introduces an all-dielectric metamaterial absorber with excellent absorption performance, thermal stability, and insensitivity to polarization and incident angle, which shows promising applications in the terahertz domain.
Article
Materials Science, Multidisciplinary
Zhenshan Yu, Hao Chen, Xuequan Chen, Yu-Sheng Lin
Summary: This study presents a silicon dielectric metamaterial (SDM) composed of two outer symmetric semi-circular rings and two inner symmetric split-ring resonators (SRRs). The electromagnetic responses of the SDM device in different modes were studied through numerical simulations and experiments. Increasing the structure height of the SDM device resulted in red-shifted resonances and stronger intensities. This study provides a new design strategy for the development of frequency filtering, polarization switching, and resonance modulation characteristics in THz-wave applications.
MATERIALS RESEARCH BULLETIN
(2024)
Article
Optics
Monu Nath Baitha, Kyoungsik Kim
Summary: In this study, the polarization-independent photonic spin Hall effect (PSHE) is achieved by manipulating the spin-orbit coupling of light. The thickness of the thin film can be adjusted to control the device's characteristic size. This finding will contribute to the development of polarization-independent nano-photonics devices.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Haona Chen, Jinrong Liu, Lihua Xiao, Binggang Xiao
Summary: Metamaterials, a type of engineered material, have gained more attention from researchers. Traditional metamaterial absorbers have a sandwich structure with metal layers, which increases the complexity and cost. To overcome these problems, an absorber based on all-dielectric metamaterial is proposed, using 3D printed materials. The 3D printed absorber shows lightweight, small volume, and easy fabrication, with resonance absorption peaks reaching -35 dB.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Physics, Applied
Tianyu Xiang, Tao Lei, Jiong Wu, Jianwei Wang, Helin Yang
Summary: This paper introduces the dual-Fano resonances achieved with all-dielectric toroidal metamaterials in the microwave frequency range. The structure is composed of high permittivity rectangular bars with equal spacing, leading to two transparency peaks. The compact all-dielectric structure has important implications in various fields.
APPLIED PHYSICS EXPRESS
(2022)
Article
Physics, Applied
Zheyipei Ma, Chao Jiang, Jiale Li, Xiaozhong Huang
Summary: In this paper, a new wide-band and high-absorption metamaterial absorber (WHMA) is proposed and fabricated, which exhibits excellent absorption property and improved stability of oblique incidence. The functions of metasurface (MS) and different dielectric slabs are analyzed. Simulation and measurement results validate the proposed design. The low area density of the structure is achieved due to the use of foam and thin dielectric layers.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Multidisciplinary
Lintao Li, Jingda Wen, Yichen Wang, Yue Jin, Yongzheng Wen, Jingbo Sun, Qian Zhao, Bo Li, Ji Zhou
Summary: In this paper, an all-dielectric transparent broadband metamaterial absorber utilizing the composited structure of layered and cylindrical water with the shell of cross-shaped PMMA was designed. The patterned shell was fabricated using two-dimensional laser cutting technology, showing high absorption of over 90% at 13.3-40 GHz and optical transmittance of 73% with polarization insensitivity and wide-angle incident tolerance. Moreover, the transparent absorber can modulate low-frequency absorptivity by adjusting temperature and ion concentration. The all-dielectric transparent broadband metamaterial absorber based on laser cutting technology has promising potential in a wider range of both civil and military applications.
Article
Physics, Multidisciplinary
Yuchun She, Zhaoming Cheng, Hongju Li, Shi Hu, Yunbao Zheng, Feng Wu
Summary: As a type of metamaterial, elliptical metamaterials (EMMs) with elliptical iso-frequency curves offer a lossless platform to manipulate light with high efficiency. In this study, we construct a special class of one-dimensional (1D) photonic crystals (PCs) called all-EMM 1D PCs using two types of EMMs, and achieve polarization-sensitive photonic bandgaps (PBGs). By taking advantage of the polarization-sensitive property of the PBG, we design a wide-angle high-performance polarizer.
Article
Chemistry, Multidisciplinary
Buxiong Qi, Wenqiong Chen, Tiaoming Niu, Zhonglei Mei
Summary: The proposed all-metal titanium pyramid structured metamaterial absorber (MMA) achieves broadband absorption, efficient solar-selective absorption, and high photothermal conversion efficiency. The MMA exhibits strong and broadband absorption due to LSPP absorption, coupled effects of multiple plasmons, and high loss of the titanium material. It also shows wide-angle incidence and polarization insensitivity, with great processing accuracy tolerance.
Article
Physics, Condensed Matter
Mengyue Peng, Faxiang Qin, Liping Zhou, Huijie Wei, Zihao Zhu, Xiaopeng Shen
Summary: This study presents a material-structure integrated design method for all-dielectric metamaterial absorbers, utilizing the synergy between material and structure to optimize the absorption performance. The results demonstrate the importance of the coupling between material and structure in achieving desirable absorption properties.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Engineering, Electrical & Electronic
Xin Huang, Wenxian Ye, Jia Ran, Zhihao Zhou, Rui Li, Bing Gao
Summary: In this article, an all-metal metamaterial absorber is proposed for sensitive biomolecular detection in the terahertz regime. The proposed absorber achieves a near-perfect absorption of 100% at 1.99 THz with a quality factor value of 87, demonstrating excellent performance below 2 THz. The sensing performance for refractive index variations is investigated, reaching a maximum sensitivity of 540 GHz/RIU and a figure of merit of 23.5 RIU-1.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Raktim Sarma, Nishant Nookala, Kevin James Reilly, Sheng Liu, Domenico de Ceglia, Luca Carletti, Michael D. Goldflam, Salvatore Campione, Keshab Sapkota, Huck Green, George T. Wang, John Klem, Michael B. Sinclair, Mikhail A. Belkin, Igal Brener
Summary: Dielectric metasurfaces show potential in both fundamental studies of light-matter interactions and various applications, demonstrating strong polaritonic coupling and the ability to tailor coupling strength, making them ideal candidates for novel mid-infrared light sources.
Article
Chemistry, Physical
Fei Lv, Zhongyin Xiao, Xiaojie Lu, Mingming Chen, Yongjin Zhou
Summary: This paper proposes a multi-functional all-dielectric metamaterial composed of VO2, silicon, and silicon dioxide, achieving polarization conversion and wave absorption through the phase change characteristics of VO2. The high polarization conversion rate and absorption efficiency are explained by analyzing the amplitude and phase of the field component, as well as looking at the distribution of electric and magnetic fields. The study also investigates the effect of VO2 conductivity on the performance of the metamaterial.
Article
Physics, Multidisciplinary
Sylvain Lannebere, David E. Fernandes, Tiago A. Morgado, Mario G. Silveirinha
Summary: Inspired by semiconductor transistors, this study introduces a novel class of bulk materials with nonreciprocal and non-Hermitian electromagnetic response. The linearized permittivity tensor lacks Hermitian and transpose symmetries due to material nonlinearities combined with a static electric bias. By using an idealized MOSFET-metamaterial, an electromagnetic isolator is designed that can potentially outperform conventional Faraday isolators due to material gain. It is also suggested that similar material responses can be engineered in natural media in nonequilibrium situations.
PHYSICAL REVIEW LETTERS
(2022)
Article
Physics, Multidisciplinary
Sylvain Lannebere, Mario G. Silveirinha
Summary: This paper proposes a new paradigm for creating superlenses, inspired by the n-p-n junctions of graphene. By connecting an n-type region and a p-type region with a crystal dislocation, it is possible to mimic the interaction of complementary Hamiltonians and achieve subwavelength imaging. The paper introduces an effective model of the system and shows that it predicts perfect lensing for both propagating and evanescent waves.
NEW JOURNAL OF PHYSICS
(2022)
Article
Physics, Multidisciplinary
Tatiana G. Rappoport, Tiago A. Morgado, Sylvain Lannebere, Mario G. Silveirinha
Summary: The study finds that low-symmetry two-dimensional metallic systems can achieve distributed transistor response and characterizes the optical conductivity. By applying strain to bilayer graphene, optical gain can be realized, leading to a distributed transistor response.
PHYSICAL REVIEW LETTERS
(2023)
Article
Optics
Mario G. Silveirinha
Summary: Topological photonics offers a valuable framework to explain complex wave phenomena in electromagnetic systems. The topological index of a physical system is a global property dependent on the operators describing wave propagation. We establish a significant geometric connection between topological physics and the topological theory of mathematical surfaces. Our findings demonstrate that topological band theory extends the surface topological theory, wherein the surface genus can be considered as a Chern number of a suitable surface operator. We also explore the implications of topology in radiation problems and the bulk-edge correspondence in physical systems.
Article
Nanoscience & Nanotechnology
Filipa R. Prudencio, Mario G. Silveirinha
Summary: In this study, it is demonstrated that isorefractive spacetime crystals with a travelling-wave modulation can rigorously mimic the response of moving material systems. Unlike generic spacetime crystals, which exhibit bi-anisotropic coupling in the co-moving frame, isorefractive crystals show an observer-independent response, resulting in isotropic constitutive relations without any bianisotropy. The researchers show how this property can be utilized in calculating the band diagrams of isorefractive spacetime crystals in the laboratory frame and studying synthetic Fresnel drag. Additionally, the impact of considering either a Galilean or a Lorentz transformation in the homogenization of spacetime crystals is discussed, revealing that the effective response is independent of the transformation considered.
Article
Physics, Applied
Filipa R. Prudencio, Mario G. Silveirinha
Summary: We demonstrate that space-time modulations can be used to achieve complex nonreciprocal couplings, particularly the elusive axion response. We develop an analytical formalism for homogenizing anisotropic space-time crystals in the long wavelength limit and find that space-time crystals with appropriate glide-rotation symmetry can exhibit a giant axion-type response, several orders of magnitude larger than in natural materials. The nonreciprocal axion response has interesting potential applications in optics, such as electromagnetic isolation, and can enable exciting forms of light-wave interactions.
PHYSICAL REVIEW APPLIED
(2023)
Editorial Material
Multidisciplinary Sciences
Mario G. Silveirinha
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Optics
Konstantin Y. Bliokh, Ebrahim Karimi, Miles J. Padgett, Miguel A. Alonso, Mark R. Dennis, Angela Dudley, Andrew Forbes, Sina Zahedpour, Scott W. Hancock, Howard M. Milchberg, Stefan Rotter, Franco Nori, Sahin K. Ozdemir, Nicholas Bender, Hui Cao, Paul B. Corkum, Carlos Hernandez-Garcia, Haoran Ren, Yuri Kivshar, Mario G. Silveirinha, Nader Engheta, Arno Rauschenbeutel, Philipp Schneeweiss, Juergen Volz, Daniel Leykam, Daria A. Smirnova, Kexiu Rong, Bo Wang, Erez Hasman, Michela F. Picardi, Anatoly Zayats, Francisco J. Rodriguez-Fortuno, Chenwen Yang, Jie Ren, Alexander B. Khanikaev, Andrea Alu, Etienne Brasselet, Michael Shats, Jo Verbeeck, Peter Schattschneider, Dusan Sarenac, David G. Cory, Dmitry A. Pushin, Michael Birk, Alexey Gorlach, Ido Kaminer, Filippo Cardano, Lorenzo Marrucci, Mario Krenn, Florian Marquardt
Summary: Structured waves are found in all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave. These complex wavefields with inhomogeneities are crucial in various fields such as nanooptics, photonics, quantum matter waves, acoustics, water waves, etc. This Roadmap surveys the role of structured waves in wave physics, providing background, current research, and anticipating future developments.
Article
Physics, Applied
Antonio Alex-Amor, Carlos Molero, Mario G. Silveirinha
Summary: This paper presents an analytical framework to study scattering and diffraction phenomena in space-time-modulated metallic gratings. By using a Lorentz transformation, it is shown that a specific class of space-time-modulated gratings acts as moving media. The authors take advantage of this property to derive a closed analytical solution for the wave scattering problem, which allows the avoidance of space-time Floquet-Bloch expansions.
PHYSICAL REVIEW APPLIED
(2023)
Article
Materials Science, Multidisciplinary
Joao C. Serra, Mario G. Silveirinha
Summary: We introduce a homogenization approach to characterize the dynamical response of a generic dispersive space-time crystal in the long-wavelength limit. The theory is applied to dispersive space-time platforms with a traveling-wave modulation, and it is shown that for long wavelengths the effective response may be described by a frequency-dependent permittivity. The article discusses the peculiar physics exhibited by dispersive space-time crystals, such as anomalous permittivity dispersion, alternate gain and loss regimes, and multiple resonances in the quasistatic regime.
Article
Materials Science, Multidisciplinary
Joao C. Serra, Mario G. Silveirinha
Summary: Topological photonics is a general framework for designing unidirectional edge waveguides and other platforms with extreme nonreciprocal wave phenomena. This study focuses on the topological classification of photonic crystals formed by inclusions subjected to spacetime rotating-wave modulation. The results show that these crystals have a bianisotropic response that breaks time-reversal symmetry and can lead to nontrivial topologies. A proposal for implementing the Haldane model in a spacetime modulated photonic crystal is also presented.
Article
Nanoscience & Nanotechnology
John Pendry, Paloma Huidobro, Mario Silveirinha, Emanuele Galiffi
Summary: In this study, we investigate the behavior of Bloch waves in gratings that are moving at near the speed of light. We propose a constant refractive index model and an effective medium approximation model, and demonstrate their accuracy. We also show the sudden inflation of pulse amplitude and reversal of propagation direction when a luminal grating is turned on.
Article
Optics
David E. Fernandes, Ricardo A. M. Pereira, Sylvain Lannebere, Tiago A. Morgado, Mario G. Silveirinha
Summary: Experimental verification shows that nonreciprocal photonic systems with continuous translation symmetry may have an unclear topology. Adding a small air layer to the material interface can effectively simulate a spatial cutoff, suppressing nonreciprocal response and regularizing the topology. Moreover, nonreciprocal systems with an unclear topology can abruptly halt energy flow in a unidirectional waveguide due to the violation of the bulk-edge correspondence.
ADVANCED PHOTONICS
(2022)
Article
Materials Science, Multidisciplinary
Solange Silva, David E. Fernandes, Tiago A. Morgado, Mario G. Silveirinha
Summary: This paper demonstrates that a generic non-Hermitian photonic waveguide can be regarded as a subcomponent of an extended system with a synthetic dimension and with a nontrivial Chern topology. The number of bands below the waveguide in real space determines the gap Chern number of the extended system.
Review
Optics
Emanuele Galiffi, Romain Tirole, Shixiong Yin, Huanan Li, Stefano Vezzoli, Paloma A. Huidobro, Mario G. Silveirinha, Riccardo Sapienza, Andrea Alu, J. B. Pendry
Summary: This review comprehensively discusses the recent progress of time modulation in photonic metamaterials, including temporal switching, photonic time-crystals, and spatiotemporal modulation. It also reviews and provides perspectives on the applications of time modulation in nonreciprocity, synthetic motion, giant anisotropy, etc.
ADVANCED PHOTONICS
(2022)
