Results 11 to 20 of about 1,010,821 (306)

Circular polarization measurement of γ-rays emitted from 32S(n,γ)33S reaction with polarized neutrons [PDF]

EPJ Web of Conferences
We aim to measure circular polarization of γ-rays emitted from neutron capture reactions with a pulsed neutron source for nuclear data and nuclear physics studies. A γ-ray polarimeter was developed to measure the circular polarization. One of performance
Endo Shunsuke, Fujioka Hiroyuki, Ide Ikuo, Inuma Masataka, Iwamoto Nobuyuki, Iwamoto Osamu, Kameda Kento, Kawamura Shiori, Kimura Atsushi, Kitaguchi Masaaki, Kobayashi Ryujyu, Nakamura Shoji, Oku Takayuki, Okudaira Takuya, Okuizumi Mao, Rovira Gerard, Shima Tatsushi, Shimizu Hirohiko, Takada Shusuke, Takahashi Shingo, Yoshikawa Hiromoto, Yoshioka Tamaki   +21 more
doaj   +2 more sources

Gigahertz circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers [PDF]

, 2010
We analyze ultrafast circular polarization oscillations in a commercial vertical-cavity surface-emitting laser after spin injection at room temperature. The circular polarization exhibits faster dynamics than the intensity and longer persistence than the
Hofmann, M. R., M. R. Hofmann, H. Jaehme, Soldat, H., Jaehme, H., Ackemann, T., N. C. Gerhardt, H. Soldat, Gerhardt, N. C., Li, M., M. Li, T. Ackemann   +11 more
core   +4 more sources

CIRCULAR POLARIZATION OBSERVED IN BIOLUMINESCENCE [PDF]

Nature, 1980
The left and right lanterns of live larvae of the fireflies Photuris lucicrescens and P. versicolor emitted circularly polarized light of opposite sense. A possible mechanism is discussed. [on SciFinder (R)]
Wynberg, H., Meijer, E.W., Hummelen, J.C., Dekkers, H.P.J.M., Schippers, P.H., Carlson, A.D.   +5 more
openaire   +3 more sources

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

Sensors, 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, Tianyun Zhu, Jing Zhou, Zeshi Chu, Xiansong Ren, Jie Deng, Xu Dai, Fangzhe Li, Bo Wang, Xiaoshuang Chen, Wei Lu   +10 more
doaj   +1 more source

Circular polarization in atmospheric aerosols

Atmospheric 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, S. Gassó, K. D. Knobelspiesse   +2 more
openaire   +3 more sources

Twisted Hi-Bi fiber DFB lasers with controllable output polarization [PDF]

, 2012
We demonstrate that single polarization, hi-bi fiber DFB lasers are in general characterized by elliptical state of polarization, due to the in-built fiber birefringence axis rotation.
Wilmshurst, R., Zervas, M.N., Walker, L.M.B.   +2 more
core   +2 more sources

Active Control of the THz Wave Polarization State by an Electronically Controlled Graphene Composite Metasurface

Frontiers in Physics, 2021
Active control of terahertz (THz) wave polarization state is of great significance for sensitive detection, imaging and communication. Here, a tunable THz quarter wave plate is designed by electronically controlling a composite metasurface consisting of ...
Guocui Wang, Guocui Wang, Bin Hu, Muhammad Ismail Khan, Yan Zhang   +4 more
doaj   +1 more source

Circular Polarization near the Tight Focus of Linearly Polarized Light

Photonics, 2022
We have considered the tight focusing of light with linear polarization. Using the Richards–Wolf formalism, it is shown that before and after the focal plane, there are regions in which the polarization is circular (elliptical).
Sergey S. Stafeev, Anton G. Nalimov, Alexey A. Kovalev, Vladislav D. Zaitsev, Victor V. Kotlyar   +4 more
doaj   +1 more source

Low Loss Transmission Circular Polarizer for KU Band Application

Sukkur IBA Journal of Emerging Technologies, 2018
Low loss transmission circular polarizer is proposed for Ku band applications. The designed structure consists of two closely cross metallic strips which are based on FSS for 15.25 GHz and 15.28 GHz applications.
Farman Ali Mangi
doaj   +1 more source

Optical Polarization Sensor Based on a Metalens

Sensors, 2022
We investigated an optical microsensor of the polarization state of a laser light based on a metalens. In contrast to known polarization sensors based on metasurfaces that deflect different polarization types using various angles to the optical axis, the
Victor Kotlyar, Anton Nalimov, Alexey Kovalev, Sergey Stafeev   +3 more
doaj   +1 more source