Results 41 to 50 of about 560,130 (293)

Tunable Metasurface With Dynamic Amplitude and Phase Control

IEEE Access, 2021
Tunable metasurfaces are of great potential for the next-generation electromagnetic systems (e.g. beamforming systems due to the capabilities for ultra-fast reconfiguration speed and agile beam programming on the go).
Bowen Zheng, Han Ren, Sensong An, Hong Tang, Hang Li, Mohammad Haerinia, Yunxi Dong, Clayton Fowler, Hualiang Zhang   +8 more
doaj   +1 more source

Nonreciprocal terahertz wavefront manipulation based on a magneto-optical metasurface with an orthogonal meta-atom pair

Journal of Physics D: Applied Physics, 2023
Active wavefront manipulation and nonreciprocal transmission give key performances in beam steering, unidirectional isolation, and multichannel multiplexing.
Hao Wang, Fei Fan, Zhiyu Tan, Dan Zhao, Jierong Cheng, Shengjiang Chang   +5 more
openalex   +2 more sources

Manipulation of wavefront using helical metamaterials

Optics Express, 2016
Helical metamaterials, a kind of 3-dimensional structure, has relatively strong coupling effect among the helical nano-wires. Therefore, it is expected to be a good candidate for generating phase shift and controlling wavefront with high efficiency.
Zhenyu, Yang, Zhaokun, Wang, Huan, Tao, Ming, Zhao   +3 more
openaire   +2 more sources

Heterogeneous Amplitude−Phase Metasurface for Distinct Wavefront Manipulation

Advanced Photonics Research, 2021
Achieving simultaneously multiple distinct wavefront manipulations using a single flat plate is pivotal in increasing the integration level and information capacity of an optoelectronic system.
Chaohui Wang, He-Xiu Xu, Yanzhao Wang, Cheng Zhang, Shaojie Wang, Mingzhao Wang, Xiao Yang   +6 more
doaj   +1 more source

Deterministic approach to decoupling amplitude from phase via a single-layered metasurface

Materials & Design, 2023
Controlling the phase and amplitude of reflected waves has been challenging due to the inherent coupling between them. Changes in the phase of a wave often result in changes in its amplitude, and vice versa.
Fang Yuan, Qiang Chen, Yuejun Zheng, Weipeng Wan, Liang Ding, Zhanshan Sun, Yunqi Fu   +6 more
doaj   +1 more source

Focusing and Compression of Ultrashort Pulses through Scattering Media [PDF]

, 2011
Light scattering in inhomogeneous media induces wavefront distortions which pose an inherent limitation in many optical applications. Examples range from microscopy and nanosurgery to astronomy.
A Assion, A Derode, AM Weiner, BA Wilt, BJ Pearson, BK Andrasfalvy, C-L Hsieh, D Oron, D Oron, D Yelin, E Small, E Tal, Eran Small, F Lemoult, G Lerosey, H Rabitz, H Szmacinski, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, IM Vellekoop, J Aulbach, JC Diels, JM Dela Cruz, JW Goodman, M Aeschlimann, M Cui, M Fink, M Oheim, M Rueckel, MA Webster, MI Stockman, MJ Booth, NC Bruce, Ori Katz, P Sebbah, PM Johnson, RK Tyson, S Popoff, SM Popoff, T Čižmár, W Denk, Y Jiang, Yaron Bromberg, Yaron Silberberg, Z Yaqoob   +46 more
core   +1 more source

Switchable metasurface with double phase distributions for wavefront manipulation

Physica Scripta, 2023
We designed a switchable metasurface for wavefront manipulation by employing vanadium dioxide (VO2), which can convert the circular polarized wave to its cross-polarized wave.
Junhao Niu, Chunhui Li, Qianyu Yao, Wei Mo, Aijun Zhu   +4 more
openalex   +2 more sources

Dynamic PB metasurface for transmissive and reflective wavefront manipulation [PDF]

Physica Scripta
Based on the phase transition characteristics of vanadium dioxide (changes in conductivity with temperature), we designed a dynamic metasurface for wavefront manipulation that can switch between transmission and reflection modes at the same frequency ...
Yihan Wang, Chunhui Li, Junhao Niu
openalex   +2 more sources

Dual-polarization wave-front manipulation with high-efficiency metasurface

AIP Advances, 2020
In recent years, plentiful works have focused on anomalous reflections, but only few works achieved dual-polarized reflection with high efficiency.
Jie Cui, Qian Fan Nie, Ying Ruan, Si Si Luo, Fu Ju Ye, Lei Chen   +5 more
doaj   +1 more source

Pupil wavefront manipulation for optical nanolithography [PDF]

SPIE Proceedings, 2012
As semiconductor lithography is pushed to smaller dimensions, process yields tend to suffer due to subwavelength topographical imaging effects. Three dimensional or "thick mask" effects result in such things as a pitch dependent best focus and, for alternating phase shift masks (AltPSMs), an intensity imbalance between etched and un-etched features.
Monica Kempsell Sears, Joost Bekaert, Bruce W. Smith   +2 more
openaire   +1 more source