Results 21 to 30 of about 560,130 (293)

Single-Layered Phase-Change Metasurfaces Achieving Polarization- and Crystallinity-Dependent Wavefront Manipulation [PDF]

Photonics, 2023
As a promising platform for versatile electromagnetic (EM) manipulations, metasurfaces have drawn wide interest in recent years due to their unique EM properties and small footprints.
Jie Hu, Yujie Chen, Wenting Zhang, Ziyi Tang, Xiang Lan, Qinrong Deng, Hengyu Cui, Ling Li, Yijia Huang   +8 more
doaj   +2 more sources

Realization of Terahertz Wavefront Manipulation Using Transmission-Type Dielectric Metasurfaces [PDF]

Frontiers in Physics, 2020
Metasurfaces, composed of an array of subwavelength artificial structures, have attracted great interest, owing to their high ability in locally manipulating the wavefront of electromagnetic waves.
Jiaqi Li, Tingyin Ning, Min Zhang, Ireng Ling Li, Hong Su, Huawei Liang   +5 more
doaj   +2 more sources

A universal and versatile terahertz field manipulation mechanism by manipulating near-infrared phases with a dislocation scheme [PDF]

Nature Communications
This paper presents a universal and versatile terahertz (THz) wavefront-phase manipulation by manipulating the two-dimensional phases of the near-infrared pulses.
Qinggang Lin, Fu Feng, Xuanke Zeng, Yi Cai, Wenzhao He, Congying Wang, Kaipeng Wu, Xiaowei Lu, Hongmei Zhong, Shixiang Xu, Jingzhen Li, Xiaocong Yuan   +11 more
doaj   +2 more sources

Multifunctional Janus metasurfaces achieving arbitrary wavefront manipulation at dual frequency

Materials & Design, 2022
Metasurface with simultaneous control of amplitude, phase, and polarization of electromagnetic (EM) waves has drawn great attention in modern optics and photonics.
Ziyi Tang, Ling Li, Haochen Zhang, Jianing Yang, Jie Hu, Xuehua Lu, Yongqiang Hu, Song Qi, Ke Liu, Mingyang Tian, Jinjin Jin, Zuojun Zhang, He Lin, Yijia Huang   +13 more
doaj   +2 more sources

Manipulation of Polarization-Dependent Electromagnetic Wavefront Via Anisotropic Metasurfaces [PDF]

Journal of Computational Electronics
Abstract Metasurfaces have garnered significant attention in recent years for their ability to manipulate electromagnetic (EM) wave propagation, owing to their high design flexibility, low profiles, and ease of fabrication. This study proposes the use of polarization-dependent anisotropic metasurfaces to manipulate the phase of orthogonal ...
Shaohua Ye, Yangsen Hu, Jin Li, Song Wu
openalex   +2 more sources

Janus metagrating for tailoring direction-dependent wavefronts [PDF]

Nanophotonics
Janus metasurfaces have emerged as a promising platform to enable independent wave manipulation by fully exploiting the inherent propagation direction of electromagnetic waves.
Tan Zhen, Yi Jianjia, Burokur Shah Nawaz
doaj   +2 more sources

Tunable circular dichroism in all-dielectric metasurface with efficient wavefront manipulation

Results in Physics, 2023
In this paper, an all-dielectric metasurface based on phase-change material Ge2Sb2Se4Te1 (GSST) working in the mid-infrared band is designed, and combined with Pancharatnam-Berry (PB) phase to realize multifunctional metasurfaces.
Zhuolin Shi, Jinglin He, Qihang Wu, Hanru Shao, Jianfeng Dong   +4 more
doaj   +2 more sources

Nonreciprocal Pancharatnam-Berry metasurface for unidirectional wavefront manipulations

Optics Express
Optical metasurfaces employing the Pancharatnam-Berry (PB) geometric phase, called PB metasurfaces, have been extensively applied to realize spin-dependent light manipulations. However, the properties of conventional PB metasurfaces are intrinsically limited by the Lorentz reciprocity.
Hao Pan, Mu Ku Chen, Din Ping Tsai, Shubo Wang   +3 more
openalex   +4 more sources

Pairing Toroidal and Magnetic Dipole Resonances in Elliptic Dielectric Rod Metasurfaces for Reconfigurable Wavefront Manipulation in Reflection. [PDF]

Adv Opt Mater, 2018
Tsilipakos O, Tasolamprou AC, Koschny T, Kafesaki M, Economou EN, Soukoulis CM.   +5 more
europepmc   +3 more sources

Deeply Subwavelength Metasurface Resonators for Terahertz Wavefront Manipulation

Advanced Optical Materials, 2019
AbstractMetasurfaces offer a highly flexible platform for controlling the propagation and localization of electromagnetic waves. Due to the relatively large size of commonly used resonators, various undesirable effects including spatial dispersion and spurious diffraction occur, thus limiting the metasurface performance. To overcome these problems, one
Mingkai Liu, Quanlong Yang, Ahmmed A. Rifat, Vidur Raj, Andrei Komar, Jiaguang Han, Mohsen Rahmani, Haroldo T. Hattori, Dragomir N. Neshev, David A. Powell, Ilya V. Shadrivov   +10 more
openalex   +4 more sources