Results 41 to 50 of about 1,292,234 (234)

Polarization-Insensitive Concentric Circular Grating Filters Featuring a Couple of Resonant Peaks

IEEE Photonics Journal, 2015
We demonstrate here guided mode resonance (GMR) concentric circular grating filters (CCGFs) on an HfO2-on-silicon platform. The fabricated devices are realized with a membrane structure by completely removing the silicon substrate beneath the HfO2 device
Wei Wang, Qifa Liu, Gangyi Zhu, Xin Li, Shumin He, Tongliang Sa, Gao, Yongjin Wang   +7 more
doaj   +1 more source

Polarization insensitive symmetrical structured double negative (DNG) metamaterial absorber for Ku-band sensing applications

Scientific Reports, 2022
Metamaterial absorber (MMA) is now attracting significant interest due to its attractive applications, such as thermal detection, sound absorption, detection for explosive, military radar, wavelength detector, underwater sound absorption, and various ...
M. L. Hakim, T. Alam, M. Soliman, N. Sahar, M. Baharuddin, Sami H. A. Almalki, Mohammad Tausiful Islam   +6 more
semanticscholar   +1 more source

Graphene-based polarization insensitive rasorber with tunable passband

Results in Physics, 2019
In this paper, a frequency-selective dual-polarization rasorber with absorption-transmission-absorption response is presented. The transmission window could be tunable when the chemical potentials of graphene loaded on the proposed rasorber are changed ...
Meijun Qu, Shufang Li
doaj   +1 more source

Polarization-insensitive dual-wavelength dispersion tunable metalens achieved by global modulation method

, 2023
SF$_6$ is widely used as a gas-insulator in high-voltage power electrical system. Detecting SF$_6$ leaks using unmanned aerial vehicle (UAV)-based thermal cameras allows efficient large-scale inspections during routine maintenance.
Yanlin Zhu (5693675), Lijun Wu (152858), Jiepeng Wu (16806189), Qianbin Feng (16806186), Qiang Li (8118), Haohan Chen (13843641), Hao Wang (39217)   +6 more
core   +1 more source

Polarization-Independent Filter Based on 2-D Crossed Grating Under Oblique Incidence

IEEE Photonics Journal, 2018
The existing polarization-insensitive filters based on two dimensional (2-D) grating are mostly under normal incidence. However, in filtering optical devices, the normal incidence regime is usually avoided because it requires the use of beam separators ...
Danyan Wang, Qingkang Wang, Zhongqiu Zhan   +2 more
doaj   +1 more source

Graphene-Metamaterial Based Tunable Broadband Polarization Insensitive Absorber for Terahertz Antenna Design

IEEE Access
The advent of graphene has opened new avenues for the design of high-performance metamaterial devices, particularly in the realm of electromagnetic absorption applications.
Rummanur Rahad, A. S. Mohsin, Mohammed Belal Hossain Bhuian, Md. Mosaddequr Rahman   +3 more
semanticscholar   +1 more source

Polarization insensitive phase modulator for quantum cryptosystems

Optics Express, 2006
In this paper, we propose a polarization-insensitive phase modulation scheme based on frequency modulation of light waves using either one or a pair of acousto-optic modulators. A stable Sagnac quantum key distribution (QKD) system employing this technique is also proposed.
Bing, Qi, Lei-Lei, Huang, Hoi-Kwong, Lo, Li, Qian   +3 more
openaire   +2 more sources

Polarization-Insensitive and Broadband Optical Power Splitter With a Tunable Power Splitting Ratio

IEEE Photonics Journal, 2017
In this paper, we propose a novel tunable power splitter based on symmetric Mach–Zehnder (MZ) structure to achieve the polarization-insensitive and broadband performance.
Xiuling Deng, Lianshan Yan, Hengyun Jiang, Wei Pan, Bin Luo, Xihua Zou   +5 more
doaj   +1 more source

Highly Efficient Polarization-Insensitive Grating Couplers on Thin-Film Lithium Niobate with an Integrated Gold Layer

Photonics
The thin-film lithium niobate platform, which is emerging as a promising photonic integration platform, currently lacks a polarization-insensitive grating coupler (GC), a crucial component for polarization-independent fiber interfaces.
Alaa Sultan, Mostafa Khalil, Leila Mehravar, Chang-qing Xu   +3 more
doaj   +1 more source

Polarization-insensitive electro-optic modulator based on thin-film lithium niobate multimode waveguide [PDF]

APL Photonics
We demonstrate a polarization-insensitive electro-optic (EO) modulator based on x-cut thin-film lithium niobate (TFLN), employing capacitively loaded traveling-wave (CLTW) electrodes on an undercut-etched silicon substrate.
Haohua Wang, Zong Wang, Lu Qi, Ao Cui, Ziliang Ruan, Changjian Guo, Kaixuan Chen, Liu Liu   +7 more
doaj   +1 more source