Polarization-Insensitive Silicon Photonic Variable Optical Attenuator
PhotonicsWe 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 +7 more
doaj +2 more sources
Visible light nearly perfect absorber: an optimum unit cell arrangement for near absolute polarization insensitivity. [PDF]
Optics Express, 2017 In this work, we propose an optimum unit cell arrangement to obtain near absolute polarization insensitivity in a metal-insulator-metal (MIM) based ultra-broadband perfect absorber.
A. Ghobadi +6 more
semanticscholar +2 more sources
Highly Transparent Broadband and Polarization-Insensitive Absorber Based on Metasurface
Applied Sciences, 2020 A highly transparent polarization-insensitive metamaterial absorber with wideband microwave absorption is presented. The broadband absorption (6.0~16.7 GHz, absorptance > 85%) is achieved using three patterned resistive metasurfaces.
Houdi Xiao +3 more
doaj +2 more sources
Polarization-Insensitive Lithium Niobate-on-Insulator Interferometer
MicromachinesThe key components of a polarization-independent electro-optic (EO) interferometer, including the beam splitter, mode converter, and directional coupler, are designed based on a lithium niobate (LN) platform on an integrated insulator to ensure high ...
Jiali Liao +7 more
doaj +3 more sources
Design of a centimeter-scale achromatic hybrid metalens with polarization insensitivity in the visible. [PDF]
Optics Letters, 2022 Achromatic metalenses formed using previous design methods face a compromise between diameter, numerical aperture, and working wave band. To address this problem, the authors coat the refractive lens with a dispersive metasurface and numerically ...
Tien-Yi Hu +7 more
semanticscholar +1 more source
Metasurface-based broadband polarization-insensitive polarization rotator
Optics Express, 2022 The polarizations of electromagnetic (EM) waves are very important for transceivers. We propose a broadband polarization-insensitive polarization rotator (PIPR), which can realize 90° polarization rotation for incident waves with an arbitrary azimuth angle.
Wei, Liu +6 more
openaire +2 more sources
Polarization-Insensitive Metalenses at Visible Wavelengths [PDF]
Nano Letters, 2016 In this Letter, we demonstrate highly efficient, polarization-insensitive planar lenses (metalenses) at red, green, and blue wavelengths (λ = 660, 532, and 405 nm). Metalenses with numerical apertures (NA) of 0.85 and 0.6 and corresponding efficiencies as high as 60% and 90% are achieved.
Khorasaninejad, M. +7 more
openaire +8 more sources
Broadband achromatic mid-infrared metalens with polarization-insensitivity
AIP Advances, 2022 Metasurfaces have shown excellent ability in manipulating light fields. However, the intrinsic chromatic aberration impairs the quality of their broadband operation, which is a serious problem restricting the application of metadevices, especially ...
Chenchen Sha +3 more
doaj +1 more source
Nickel-Based High-Bandwidth Nanostructured Metamaterial Absorber for Visible and Infrared Spectrum
Nanomaterials, 2022 The efficient control of optical light at the nanoscale level attracts marvelous applications, including thermal imaging, energy harvesting, thermal photovoltaics, etc.
Rana Muhammad Hasan Bilal +5 more
doaj +1 more source
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 +8 more
doaj +1 more source