Results 21 to 30 of about 1,292,234 (234)

Polarization-Insensitive Silicon Photonic Variable Optical Attenuator

Photonics
We propose and demonstrate a polarization-insensitive silicon photonic variable optical attenuator. The designed device uses a two-dimensional apodized grating coupler as a surface-normal coupling interface, which has the advantages of low-cost fiber ...
Meixin Li, Yuxuan Zhang, Hao Jiang, Haoran Wang, Danni Luo, Jing Yang, Yabin Li, Zanyun Zhang   +7 more
doaj   +2 more sources

Evanescent wave induced polarization-insensitive self-organization of stratified single-negative materials

New Journal of Physics, 2021
Optical fields can induce optical forces between macroscopic objects, giving rise to different structures. Through rigorous calculation, we show that a collection of single negative slabs which possesses either negative permittivity or negative ...
Liyong Cui, Hang Yin
doaj   +1 more source

Fourier Convolution Operation on Metasurface-Based Hologram in Microwave Region

Photonics, 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.
Shuai Yang, Chunsheng Guan, Xumin Ding, Kuang Zhang, Shah Nawaz Burokur, Qun Wu   +5 more
doaj   +1 more source

Polarization-Insensitive, Broadband, and Tunable Terahertz Absorber Using Slotted-Square Graphene Meta-Rings

IEEE Photonics Journal, 2023
Graphene-based metamaterials are gaining popularity for developing various reconfigurable and electrically tunable optical devices – especially in terahertz (THz) and infrared (IR) bands.
Subhan Zakir, R. Bilal, Muhammad Ashar Naveed, M. Baqir, Muhammad Usman Ali Khan, M. M. Ali, M. A. Saeed, M. Q. Mehmood, Y. Massoud   +8 more
semanticscholar   +1 more source

Polarization-insensitive silicon optic switch based on mode manipulated power splitters and phase shifters

APL Photonics, 2023
A polarization-insensitive thermo-optic switch is proposed and demonstrated on the silicon-on-insulator platform with a 220 nm silicon core layer. The present device is based on the Mach–Zehnder interferometer structure, consisting of polarization ...
Shi Zhao, Jingye Chen, Daoxin Dai, Yaocheng Shi   +3 more
doaj   +1 more source

MXene-Based Polarization-Insensitive UV-VIS-NIR Meta-Absorber

IEEE Access, 2023
The concept of achieving perfect absorption of electromagnetic (EM) waves has engendered substantial interest in diverse applications, encompassing photoelectric conversions, infrared imaging, energy harvesting, and photovoltaics.
M. Q. Mehmood, A. R. Shah, Muhammad Ashar Naveed, Nasir Mahmood, M. Zubair, Y. Massoud   +5 more
semanticscholar   +1 more source

Multiband Polarization-Insensitive Cartwheel Metamaterial Absorber

Journal of Materials Science, 2022
Abstract Metamaterials are specifically engineered to produce electromagnetic properties that are not available in natural materials. Multiband metamaterial (MM) absorbers achieve great research interest due to their applications in sensing, filtering, and stealth.
Khalid Majeed, Shahab Ahmad Niazi, O. Altintas, M. A. Baqir, M. Karaslaan, Ugur Cem Hasar   +5 more
openaire   +1 more source

Broadband orbital angular momentum beam generation based on polarization-insensitive reflect array

AIP Advances, 2023
Electromagnetic waves carrying orbital angular momentum (OAM) can be applied in various regions. Much research endeavor has been devoted to developing broadband and polarization-insensitive OAM beams that are preferred in many intriguing applications ...
Zhengping Zhang, Xiong Wang
doaj   +1 more source

Proposal for a simple polarization converter based on integrated optical ion exchanged waveguide [PDF]

, 2010
A simple, compact, low-cost electro-optic polarization converter based on a nematic liquid crystal (LC) sandwiched between two ion-exchanged glass channel waveguides is proposed.
Zheng, Jie, Farrell, G., null Pengfei Wang, null Qiang Wu, Semenova, Y., Semenova, Yuliya, Brambilla, G., G. Brambilla, Wu, Qiang, Brambilla, Gilberto, G. Farrell, Farrell, Gerald, Y. Semenova, Wang, Pengfei, null Jie Zheng   +14 more
core   +1 more source

Wideband ultrathin and polarization insensitive metamaterial absorber for Ku-band applications

Journal of Materials Science: Materials in Electronics, 2023
In this paper, wideband, and ultrathin metamaterial absorber is proposed, analyzed and fabricated for Ku-band applications. The reported absorber has a nearly perfect absorptivity above 90% covering the entire Ku band (12–20 GHz) at normal incidence for ...
A. Saadeldin, A. M. Sayed, Adnan M. Amr, Menna O. Sayed, M. Hameed, S. Obayya   +5 more
semanticscholar   +1 more source