Results 91 to 100 of about 674 (191)

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Electrically Responsive Structural‐Color Materials

Aggregate, Volume 7, Issue 7, July 2026.
This review highlights electrically responsive structural‐color materials as next‐generation electrochromic platforms, summarizing key structural designs, modulation mechanisms, and performance metrics to enable continuous, low‐voltage, and tailorable color tuning for advanced display, camouflage, and security applications.
Qiming Wang, Dekun Ma, Cong Cao, Dongpeng Yang, Shaoming Huang   +4 more
wiley   +1 more source

Achromatic Petal‐Shaped Beam Generation and Information Encoding Based on Perfect Vortex Beam

Nanophotonics, Volume 15, Issue 10, 27 May 2026.
Based on petal‐shaped beams with controllable topological charge, size, and rotation angle, this work employs a spatially multiplexed all‐dielectric TiO2 transmissive array to numerically achieve achromatic petal‐shaped beams at three wavelengths: 480 nm, 530 nm, and 630 nm. Leveraging their unique intensity distribution and rotational characteristics,
Yilong Ge, Yifeng Wei, Jinqin Cui, Ziben Liu, Yang Liu, Bingxue Zhang, Dandan Wen, Peng Li, Sheng Liu, Jianlin Zhao, Dong Li   +10 more
wiley   +1 more source

An Ultra-Wide Band Polarization-Independent Random Coding Metasurface for RCS Reduction

, 2019
In this paper, a novel ultra-wide band (UWB) random 3-bit coding metasurface with polarization independence has been designed to realize radar cross-section (RCS) reduction.
Huangyan Li, Jiaqing Chen, Zheng He, Yongjiu Zhao, Huijuan Dai, Wenjun Qi   +5 more
core   +1 more source

Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region

, 2021
In this paper, a 0.1λ0-thick 1-bit coding metasurface is proposed to achieve a polarization-insensitive hologram under oblique incidence, utilizing compact ground-backed patch unit cells.
Chunsheng Guan, Shuai Yang, Xumin Ding, Yang, Shuai, Zhang, Kuang, Burokur, Shah Nawaz, Ding, Xumin, Wu, Qun, Guan, Chunsheng, Shah Nawaz Burokur, Kuang Zhang, Qun Wu   +11 more
core   +1 more source

Terahertz Metasurface for Spatial Detection of Full Stokes Parameters and Polarization Imaging

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This work presents a THz polarization analyzer with significantly improved robustness against nonuniformity. By integrating four polarization‐sensitive meta‐atoms into a meta‐cell, the metalens splits incident light into six polarization components and generates off‐axis focal spots.
Shengnan Guan, Jierong Cheng, Haifeng Xu, Fan Li, Chenglong Liu, Shengjiang Chang   +5 more
wiley   +1 more source

An Ultrawideband Polarization-Insensitive Diffusion Metasurface Using Period Changed Unit Cell for RCS Reduction

, 2021
A polarization-insensitive diffusion metasurface using a period-changed unit cell is presented for reducing the radar cross-section (RCS) of metallic objects in ultrawideband.
Tao Su, Jianzhong Chen, Yutong Zhao, Lei Lin, Liang Li, Bian Wu, Chengwei Zhang, Jinshan Ding   +7 more
core   +1 more source

Continuous manipulation of electromagnetic radiation based on ultrathin flexible frequency coding metasurface

Scientific Reports
The physical characteristics of electromagnetic waves are combined with digital information in coding metasurfaces. Coding metasurfaces enable precise control of beams by flexibly designing coding sequences.
Min Jia, Chao Zhao, Zhouhao Tang, Ziliang Jin, Ningtao Zhang, Xiaofeng Han   +5 more
doaj   +1 more source

Terahertz Encryption With a Polarization‐Sensitive Metasurface

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
We propose a dual‐functional terahertz encryption metasurface that enables independent information retrieval in both the near field and the far field within a single device. In the near field, polarization‐selective amplitude modulation reveals textual patterns, whereas in the far field, phase engineering encodes multiple digital data in focal‐spot ...
Yixuan He, Huan Zhao, Tong Nan, Xinke Wang, Yan Zhang   +4 more
wiley   +1 more source

Multifunctional Coding-Feeding Metasurface Based on Phase Manipulation

, 2022
Multiple functionalities on a shared aperture are crucial for metasurfaces (MSs) in many applications. In this paper, we propose a coding-feeding metasurface (CFMS) with the multiple functions of high-gain radiation, orbital angular momentum (OAM ...
Huang, Guo-Shuai, Guo-Shuai Huang, Zhuo-Yue Li, Li, Si-Jia, Liu, Xiao-Bin, Xiao-Bin Liu, Si-Jia Li, He, Cheng-Yuan, Cao, Xiang-Yu, Huan-Huan Yang, Yang, Huan-Huan, Cheng-Yuan He, Li, Zhuo-Yue, Xiang-Yu Cao   +13 more
core   +1 more source