Results 51 to 60 of about 1,292,234 (234)

Polarization-insensitive tunable terahertz polarization rotator

Optics Express, 2019
A rotation-angle variable polarization rotator is proposed and demonstrated using an all-dielectric metasurface doublet. Such a transmissive device can conveniently rotate the polarization of incident light by any desired angles by mechanically changing the relative angle of the double metasurface layers regardless of the incident state of polarization.
Shaoxian Li, Minggui Wei, Xi Feng, Qingwei Wang, Quan Xu, Yuehong Xu, Liyuan Liu, Chunmei Ouyang, Wentao Zhang, Cong Hu, Xueqian Zhang, Jiaguang Han, Weili Zhang   +12 more
openaire   +2 more sources

Polarization-Insensitive Phase Modulators Based on an Embedded Silicon-Graphene-Silicon Waveguide

Applied Sciences, 2019
A polarization-insensitive phase modulator concept is presented, based on an embedded silicon-graphene-silicon waveguide. Simulation results show that the effective mode index of both transverse electric (TE) and transverse magnetic (TM) modes in the ...
Xinhai Zou, Yujia Zhang, Zhihui Li, Yiwei Yang, Shangjian Zhang, Zhiyao Zhang, Yali Zhang, Yong Liu   +7 more
doaj   +1 more source

Polarization Insensitive Broadband Concentric- Annular-Strip Octagonal Terahertz Graphene Metamaterial Absorber

IEEE Photonics Journal, 2022
In this paper, a polarization insensitive terahertz (THz) graphene metamaterial absorber (MA) with wide bandwidth is proposed, which consists of three concentric annular strips and one octagonal unit graphene structures. By adjusting the positions of the
Heming Yu, Peiwen Xiang, Yuanfeng Zhu, Shan Huang, Xingfang Luo   +4 more
semanticscholar   +1 more source

Ultrabroadband Polarization-Insensitive Coupler Based on Dual-Core Photonic Crystal Fiber

IEEE Photonics Journal, 2017
We propose a dual-core photonic crystal fiber (PCF) for a broad bandwidth polarization-insensitive coupler. To achieve ultrabroadband and polarization-insensitive characteristics, two elliptical fluorine-doped cores are introduced.
Tongtong Zhao, Shuqin Lou, Xin Wang, Min Zhou, Zhenggang Lian   +4 more
doaj   +1 more source

Polarization-insensitive tunable multiple electromagnetically induced transparencies analogue in terahertz graphene metamaterial

, 2016
A graphene-based metamaterial structure composed of multilayer graphene/dielectric stacking configuration is proposed, which achieves multiple analogue of electromagnetically induced transparencies (EIT) effect at terahertz frequencies.
Fan, Wenhui (fanwh@opt.ac.cn), Fan, Wenhui, Chen, Xu   +2 more
core   +1 more source

Design and Optimization of a Broadband Polarization-Insensitive 90° Optical Hybrid in Double-Strip Silicon Nitride Waveguides

Photonics
Coherent optical communication serves as the backbone of long-haul, high-capacity optical networks, where polarization-insensitive 90° optical hybrids (OHs) are crucial for system simplification and robustness.
Rui Meng, Yan Fan, Sitong Liu, Haoran Wang, Ziyang Xiong, Hao Deng, Liu Li, Junpeng Lu, Zhenhua Ni, Tong Lin   +9 more
doaj   +1 more source

A Polarization Insensitive Wide‐Band Perfect Absorber

Advanced Engineering Materials, 2019
In this article, a wide‐band and polarization‐insensitive perfect absorber composed of 4 sandwiched layers of dielectric and metal disks is introduced. Compared to classical perfect absorbers, the system supports near‐unity absorption within a wider spectral window through multiple perfect absorption mechanisms that exist due to a constituting inter ...
Habibe Durmaz, Arif E. Cetin, Yuyu Li, Roberto Paiella   +3 more
openaire   +2 more sources

Polarization insensitive imaging through polarization gratings

Optics Express, 2009
Liquid crystal polarization gratings exhibit high diffraction efficiency (approximately 100%) in thin material layers comparable to the radiation wavelength. We demonstrate that they can be combined for polarization-insensitive imaging and optical switching applications.
Sarik R, Nersisyan, Nelson V, Tabiryan, Landa, Hoke, Diane M, Steeves, Brian R, Kimball   +4 more
openaire   +2 more sources

Polarization insensitive single mode Al [PDF]

, 2015
Both passive and active, single mode, wavelength and polarization insensitive design of Al2O3 rib waveguides on SiO2 substrate is reported. Influence of the waveguide height, etch depth, waveguide width and operation wavelength to the mode number, mode ...
A. Özden, M. Demirtaş, Demirtaş, M., Özden, Ayberk, Ay, Feridun, F. Ay   +5 more
core   +1 more source

Polarization Management on Anisotropic Thin‐Film Lithium Niobate Platform

Advanced Photonics Research
This review explores polarization mode hybridization in x‐cut thin‐film lithium niobate (TFLN) waveguides and its implications for the design of photonic integrated device.
Kaixuan Chen, Youxin Liu, Xinke Xing, Haohua Wang, Tian Gao, Weilong Ma, Fansu Zhao, Lingfeng Wu, Changjian Guo, Liu Liu   +9 more
doaj   +1 more source