Results 21 to 30 of about 19,023 (293)

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

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

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

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

Polarization properties of interferometrically interrogated fiber Bragg grating and tandem-interferometer strain sensors [PDF]

, 2006
Lead sensitivity in low-coherence interferometric fiber-optic sensors is a well-known problem. It can lead to a severe degradation in the sensor resolution and accuracy through its effect on the fringe visibility and interferometric phase.
Flockhart, G M H, Cranch, G A, Kirkendall, C K   +2 more
core   +1 more source

Polarization-Insensitive Medium-Switchable Holographic Metasurfaces

, 2021
The adoption of metasurfaces has led to revolutionary advances in holography due to improved compactness, integrability, and performance. Switchable meta-holograms projecting different replay field images in a controllable manner are highly desirable ...
Daniel López (1513861), Taerin Chung, Haogang Cai, George S. D. Gordon (3984710), López, Daniel, Cai, Haogang, Gordon, George S.D., Haogang Cai (1511224), Taerin Chung (4345273), James A. Dolan, Daniel López, Chung, Taerin, Dolan, James A., James A. Dolan (11262343), George S. D. Gordon   +14 more
core   +1 more source

Additively Manufactured Polarization Insensitive Broadband Transmissive Metasurfaces for Arbitrary Polarization Conversion and Wavefront Shaping [PDF]

, 2023
Arbitrarily manipulating the polarization and wavefront of electromagnetic waves using ultrathin and highly efficient devices is desirable for many systems.
Lai, J, Yang, Y, Zhu, J, Nulman, J
core   +1 more source

Design of quad-band polarization insensitive ultra-thin compact metamaterial based absorber for terahertz applications

Results in Optics, 2022
The paper attempts to design and characterize the compact multiband absorber in the terahertz regime. The applications in the terahertz regime demand applicability of metamaterial-based absorbers.
Vishal Puri, Hari Shankar Singh
doaj   +1 more source

A broadband achromatic polarization-insensitive metalens consisting of anisotropic nanostructures

Nature Communications, 2019
Polarization-insensitive metasurfaces implies limiting the choice of constituent elements to isotropic nanostructures. Here, the authors demonstrate a polarization-insensitive metalens using anisotropic nanofins, allowing achromatic and polarization ...
Wei Ting Chen, Alexander Y. Zhu, Jared Sisler, Zameer Bharwani, Federico Capasso   +4 more
doaj   +1 more source

A Polarization-Insensitive Recirculating Delayed Self-Heterodyne Method for Sub-Kilohertz Laser Linewidth Measurement

Photonics, 2021
A polarization-insensitive recirculating delayed self-heterodyne method (PI-RDSHM) is proposed and demonstrated for the precise measurement of sub-kilohertz laser linewidths. By a unique combination of Faraday rotator mirrors (FRMs) in an interferometer,
Jing Gao, Dongdong Jiao, Xue Deng, Jie Liu, Linbo Zhang, Qi Zang, Xiang Zhang, Tao Liu, Shougang Zhang   +8 more
doaj   +1 more source