Results 1 to 10 of about 1,620,199 (235)

Single-Layer Transmissive Chiral Plasma Metasurface with High Circular Polarization Extinction Ratio in Visible Wavelength [PDF]

open access: yesNanomaterials, 2023
Chiral metamaterials are extensively applied in the fields of photoelectric detection, biomedical diagnostics and micro-nano polarization imaging. Currently, single-layer chiral metamaterials are unfortunately limited by several issues, such as a weaker ...
Ran Zhang   +4 more
doaj   +4 more sources

Circular polarization-resolved ultraviolet photonic artificial synapse based on chiral perovskite. [PDF]

open access: yesNat Commun, 2023
Circularly polarized light (CPL) adds a unique dimension to optical information processing and communication. Integrating CPL sensitivity with light learning and memory in a photonic artificial synapse (PAS) device holds significant value for advanced ...
Liu Q   +8 more
europepmc   +2 more sources

First M87 Event Horizon Telescope Results. IX. Detection of Near-horizon Circular Polarization [PDF]

open access: yesThe Astrophysical Journal Letters, 2023
Event Horizon Telescope (EHT) observations have revealed a bright ring of emission around the supermassive black hole at the center of the M87 galaxy. EHT images in linear polarization have further identified a coherent spiral pattern around the black ...
The Event Horizon Telescope Collaboration   +283 more
doaj   +2 more sources

Circular polarization in atmospheric aerosols

open access: yesAtmospheric Chemistry and Physics, 2022
Abstract. Recent technological advances have demonstrated the feasibility of deploying spaceborne optical detectors with full polarimetric capabilities. The measurement of all four Stokes coefficients opens significant new opportunities for atmospheric aerosol studies and applications.
S. Gassó   +2 more
openaire   +4 more sources

Dynamic phase assembled terahertz metalens for reversible conversion between linear polarization and arbitrary circular polarization

open access: yesOpto-Electronic Advances, 2022
If a metalens integrates the circular polarization (CP) conversion function, the focusing lens together with circular-polariz-ing lens (CPL) in traditional cameras may be replaced by a metalens.
Jitao Li, Guocui Wang, Zhen Yue
exaly   +2 more sources

A Wideband Multi-Polarized Microstrip Antenna with High Polarization Isolation Based on Dual-Circular Polarization [PDF]

open access: yesMicromachines
To address the limited overlapping bandwidth across polarization modes in conventional multi-polarized antennas, this paper proposes a wideband multi-polarized microstrip antenna with high polarization isolation.
Xuenan Wang   +6 more
doaj   +2 more sources

Configurable circular-polarization-dependent optoelectronic silent state for ultrahigh light ellipticity discrimination

open access: yesLight: Science & Applications, 2023
Filterless light-ellipticity-sensitive optoelectronic response generally has low discrimination, thus severely hindering the development of monolithic polarization detectors.
Yonghao Bu   +11 more
doaj   +2 more sources

High-Discrimination Circular Polarization Detection Based on Dielectric-Metal-Hybrid Chiral Metamirror Integrated Quantum Well Infrared Photodetectors [PDF]

open access: yesSensors, 2022
Circular polarization detection enables a wide range of applications. With the miniaturization of optoelectronic systems, integrated circular polarization detectors with native sensitivity to the spin state of light have become highly sought after.
Jinyong Shen   +10 more
doaj   +2 more sources

Water Cloud Detection with Circular Polarization Lidar: A Semianalytic Monte Carlo Simulation Approach [PDF]

open access: yesSensors, 2022
This work presents polarization property studies of water clouds using a circular polarization lidar through a simulation approach. The simulation approach is based on a polarized, semianalytic Monte Carlo method under multiple-scattering conditions and ...
Wiqas Ahmad   +5 more
doaj   +2 more sources

A Broadband Millimeter-Wave Circularly Polarized Folded Reflectarray Antenna Based on Transmissive Linear-to-Circular Polarization Converter [PDF]

open access: yesMicromachines
In this paper, a wideband circularly polarized folded reflectarray antenna (CPFRA) based on a transmissive linear-to-circular polarization converter is proposed. The CPFRA consists of a primary reflector and a sub-reflector.
Yue Cao   +4 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy