Article
Materials Science, Multidisciplinary
J. P. del Risco, I. S. Mikhalka, V. A. Lenets, M. S. Sidorenko, A. D. Sayanskiy, S. B. Glybovski, A. L. Samofalov, S. A. Khakhomov, I. Semchenko, J. D. Ortiz, J. D. Baena
Summary: This work investigates the potential of achieving wide-angle perfect absorption with Huygens' metasurfaces possessing electric and magnetic responses. By analyzing the anisotropy of the polarizability tensor of the unit cell and identifying conditions for optimal angular stability and polarization independence, a Huygens' metasurface with low reflectance across a wide frequency range and total absorption around a single resonance frequency was approximated. Numerical demonstration of optimal angular stability and experimental validation of wide-angle and wide-band properties were conducted.
Article
Engineering, Electrical & Electronic
Mohamed Malki, Li Yang, Roberto Gomez-Garcia
Summary: This study presents a transmission-line-based sharp-rejection channelized passive bandpass filter (BPF) with a tripleband response at 1.87/2.5/3.21 GHz and an infinite input-quasi-reflectionless (IQR) range. The filter combines two RF power input absorption mechanisms, including a balanced-type/two-branch circuit and an input lossy circuit. By exploiting transversal signal-interference principles, the filter achieves increased selectivity and multiple transmission zeros (TZs). The study also provides the basic RF operational foundations and measured results of a manufactured proof-of-concept microstrip prototype.
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
(2023)
Article
Optics
Asada Harumi, Kota Endo, Takehito Suzuki
Summary: Terahertz flat optics aims to replace bulky optical components with ultra-thin ones. This study presents a reflectionless metasurface with a high refractive index, made using a super-fine ink-jet printer and suitable for terahertz wavebands. Weak and good conductors can be used in designing such metasurfaces.
Article
Physics, Multidisciplinary
Zhong Huang, Chaojun Tang, Zhendong Yan
Summary: In this paper, a graphene-based non-Hermitian metasurface is proposed and investigated numerically for the THz region. By designing the structure and tuning the Fermi energy, a tunable unidirectional reflectionless phenomenon is achieved.
Article
Optics
Xiaoying Zheng, Jing Lin, Zhuo Wang, Haoyang Zhou, Qiong He, Lei Zhou
Summary: Researchers demonstrate that an optical metasurface formed by two vertically coupled resonator arrays can achieve perfect reflectionlessness at all frequencies below the first diffraction mode. The ratio between light transmission and absorption can be modulated by tuning the intrinsic loss of the system while keeping reflection minimized. By varying the near-field and far-field couplings between resonators, the system can transition between different phase regions in a generic phase diagram.
Article
Optics
Huiying Fan, Hongchen Chu, Hao Luo, Yun Lai, Lei Gao, Jie Luo
Summary: This study introduces the concept of anomalous generalized Brewster effect to metasurfaces, demonstrating an exceptional resonance-free Brewster metasurface with ultrabroadband zero reflection at grazing incidence. Practical applications showing ultrabroadband reflectionless perfect absorption at grazing incident angles are also constructed and demonstrated.
Article
Physics, Applied
A. Pitilakis, M. Seckel, A. C. Tasolamprou, F. Liu, A. Deltsidis, D. Manessis, A. Ostmann, N. Kantartzis, C. Liaskos, C. M. Soukoulis, S. A. Tretyakov, M. Kafesaki, O. Tsilipakos
Summary: This paper validates a multifunctional metasurface architecture for the microwave regime, demonstrating the potential for reconfigurable electromagnetic wave manipulation by connecting variable loads to shape the complex surface impedance.
PHYSICAL REVIEW APPLIED
(2022)
Article
Engineering, Electrical & Electronic
Jongheun Lee, Juseop Lee
Summary: This article introduces a new generic reflectionless filter topology that can design filters with zero reflection at one or both ports. The detailed mathematical analysis and three unique features make it easy to synthesize a reflectionless filter without optimization techniques or numerical methods. The presented design methodology for distributed-element filters using this topology has been verified through the design and fabrication of bandpass filters.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Review
Optics
Jian Wei You, Zhihao Lan, Qian Ma, Zhen Gao, Yihao Yang, Fei Gao, Meng Xiao, Tie Jun Cui
Summary: Metasurfaces are thin films with subwavelength structures that can control the polarization, phase, and amplitude of light. Recent developments in topological photonics have greatly expanded the design possibilities for metasurfaces in novel applications. This review summarizes recent progress in the field of topological metasurfaces, covering both passive and active systems in the classical and quantum regimes. It discusses passive topological phenomena and cutting-edge studies of active topological metasurfaces, as well as their potential applications in quantum information and many-body physics.
PHOTONICS RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
Jongheun Lee, Juseop Lee
Summary: This article presents a complete method to design transmission-line reflectionless filters, allowing for an infinite frequency range of reflectionless response. It can be applied to various filter prototypes and is not limited by filter order or response type.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS
(2022)
Article
Engineering, Electrical & Electronic
Fengyuan Yang, Dat T. Nguyen, Brian O. Raeker, Anthony Grbic, John S. Ho
Summary: This paper proposes a method to improve wireless signal transmission using cascaded metasurfaces. By using deeply subwavelength cascaded metasurfaces at the interface between air and biological tissue, the efficiency of signal transmission can be enhanced.
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
(2022)
Article
Physics, Multidisciplinary
Xuefeng Jiang, Shixiong Yin, Huanan Li, Jiamin Quan, Heedong Goh, Michele Cotrufo, Julius Kullig, Jan Wiersig, Andrea Alu
Summary: Non-Hermitian wave engineering has attracted significant interest in photonics, and reflectionless scattering modes are an important aspect of this field. However, observing these modes in complex photonic platforms has been challenging. In this study, we demonstrate the presence of reflectionless scattering modes in a chaotic photonic microcavity. By modeling the optical fields, we are able to achieve dynamic control over light radiation.
Article
Physics, Applied
Fan Gao, Zhiyu Sun, Peicheng Yuan, Juan Deng, Guoli Jin, Jian Zhou, Hao Liu, Bo Yan
Summary: In this paper, a non-parity-time symmetric multi-layer metasurface is proposed, and the polarization-dependent unidirectional reflectionless effect associated with the exceptional point is investigated. The simulation results demonstrate that the UR phenomenon can be observed by adjusting the geometric parameters of the metasurface, and it has great potential in applications such as near-field imaging and optical encryption.
APPLIED PHYSICS LETTERS
(2022)
Article
Optics
Kangzhun Peng, Yujun Huang, Huan Jiang, Ying Cui, Hui Zhang, Yongyuan Jiang, Weiren Zhao
Summary: In this study, the enhancement of dual-waveband circular dichroism (CD) was achieved by adding a layer of Ge2Sb2Te5 (GST) on top of a Z-shaped gold array in a normally incident system. The CD strength can be dynamically tuned by controlling the phase of GST. This research offers a new method for designing planar metasurfaces with strong chirality.
Article
Optics
Husnu Deniz Basdemir
Summary: The study examines the scattering process of waves by a planar junction of two half-planes, where one is impedance and the other is a reflectionless metasurface, using the transition boundary method. It obtains the scattered geometric optics field by subtracting the initial fields from the total geometric optics field, and the diffracted field by considering the relation between diffracted and scattered geometric optics field expressions in the transition boundary. The ultimate expressions of the fields are examined numerically for different parameter groups.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Chemistry, Physical
Yin Zhang, Yijun Feng, Tian Jiang, Jie Cao, Junming Zhao, Bo Zhu
Article
Optics
Junming Zhao, Shu Wei, Cheng Wang, Ke Chen, Bo Zhu, Tian Jiang, Yijun Feng
Article
Computer Science, Information Systems
Ziheng Zhou, Ke Chen, Bo Zhu, Junming Zhao, Yijun Feng, Yue Li
Article
Optics
Guowen Ding, Ke Chen, Tian Jiang, Boyu Sima, Junming Zhao, Yijun Feng
Article
Multidisciplinary Sciences
Gaochao Zhou, Bo Zhu, Junming Zhao, Guanghao Zhu, Biaobing Jin, Yijun Feng, Lin Kang, Weiwei Xu, Jian Chen, Peiheng Wu
SCIENTIFIC REPORTS
(2017)
Article
Optics
Tianshu Li, Ke Chen, Guowen Ding, Junming Zhao, Tian Jiang, Yijun Feng
Article
Physics, Applied
Boyu Sima, Ke Chen, Xinyao Luo, Junming Zhao, Yijun Feng
PHYSICAL REVIEW APPLIED
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Mingzhu Du, Ke Chen, Yijun Feng
2018 CROSS STRAIT QUAD-REGIONAL RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSQRWC)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Wenjun Wang, Hua Huang, Boyu Sima, Bo Zhu, Yijun Feng
2018 CROSS STRAIT QUAD-REGIONAL RADIO SCIENCE AND WIRELESS TECHNOLOGY CONFERENCE (CSQRWC)
(2018)
Article
Physics, Multidisciplinary
Wang Cheng, Zhao Jun-Ming, Jiang Tian, Feng Yi-Jun
ACTA PHYSICA SINICA
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Guowen Ding, Ke Chen, Yijun Feng
2018 IEEE INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY (IWAT)
(2018)
Article
Physics, Multidisciplinary
Zhang Yin, Feng Yi-Jun, Jiang Tian, Cao Jie, Zhao Jun-Ming, Zhu Bo
ACTA PHYSICA SINICA
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Yijun Feng, Ke Chen, Bo Zhu, Junming Zhao, Tian Jiang
2017 IEEE INTERNATIONAL CONFERENCE ON COMPUTATIONAL ELECTROMAGNETICS (ICCEM)
(2017)
Proceedings Paper
Engineering, Electrical & Electronic
Li Cui, Ke Chen, Yijun Feng
2017 INTERNATIONAL WORKSHOP ON ANTENNA TECHNOLOGY: SMALL ANTENNAS, INNOVATIVE STRUCTURES, AND APPLICATIONS (IWAT)
(2017)
Article
Chemistry, Multidisciplinary
Ke Chen, Yijun Feng, Francesco Monticone, Junming Zhao, Bo Zhu, Tian Jiang, Lei Zhang, Yongjune Kim, Xumin Ding, Shuang Zhang, Andrea Alu, Cheng-Wei Qiu
ADVANCED MATERIALS
(2017)