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Forthcoming radio surveys will include full polarisation information, which can be potentially useful for weak lensing observations. We propose a new method to measure the (integrated) gravitational field between a source and the observer,…

星系天体物理 · 物理学 2021-12-08 Jérémie Francfort , Giulia Cusin , Ruth Durrer

We analyzed polarization changes of light diffracted on planar chiral array from the standpoint of the Lorentz reciprocity lemma and found the bi-orthogonality in the polarization eigenstates for the waves diffracting though the grating in…

材料科学 · 物理学 2009-09-29 S. L. Prosvirnin , N. I. Zheludev

A number of polarization estimators have been developed for a variety of astrophysical applications to compensate measurements of linear polarization for a bias contributed by the instrumental noise. Most derivations of the estimators…

高能天体物理现象 · 物理学 2025-03-11 M. M. McKinnon

We have measured the photothermal effect in a single cross-polarized interferometer at audio frequencies (5 Hz - 4 kHz). In a Fabry-Perot interferometer, light in one polarization is chopped to periodically heat the interferometer mirrors,…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Shanti R. Rao

The integrated spectrum of OH emission from late-type stars is often circularly polarized, by as much as 50% in some cases. While the spectra are partially polarized, the individual maser components revealed by VLBI are much more so. Using…

天体物理学 · 物理学 2009-10-31 Stacy Palen

This article aims to provide a brief overview of both established and novel ellipsometry techniques, as well as their applications. Ellipsometry is an indirect optical technique in that information about the physical properties of a sample…

光学 · 物理学 2013-01-11 Enric Garcia-Caurel , Antonello De Martino , Jean-Paul Gaston , Li Yan

Context: Polarimetry is a very powerful tool to uncover various properties of astronomical objects that remain otherwise hidden in standard imaging or spectroscopic observations. However, the reliable measurement of the low polarization…

天体物理仪器与方法 · 物理学 2020-02-12 S. González-Gaitán , A. M. Mourão , F. Patat , J. P. Anderson , A. Cikota , K. Wiersema , A. B. Higgins , K. Silva

Relativistic mirrors can be realized with strongly nonlinear Langmuir waves excited by intense laser pulses in underdense plasma. On reflection from the relativistic mirror the incident light affects the mirror motion. The corresponding…

Far Infrared interferometry is the main diagnostics method for electron density measurements in medium sized tokamaks. The transverse density gradients of plasma produce refractive effect, and the probing radiation does not propagate along…

等离子体物理 · 物理学 2025-01-31 Rajwinder Kaur , Asha Adhiya

We identify a polarization rotation systematic in the far field beams of refractive cosmic microwave background (CMB) telescopes caused by differential transmission in anti-reflection (AR) coatings of optical elements. This systematic was…

天体物理仪器与方法 · 物理学 2026-01-08 Xiaodong Ren , Rustam Balafendiev , Jon E. Gudmundsson

The direction of polarization produced by a moving source rotates with the respect to the rest frame. We show that this effect, induced by pulsar rotation, leads to an important correction to polarization swings within the framework of…

高能天体物理现象 · 物理学 2016-07-07 Maxim Lyutikov

The vectorial evolution of polarized light interaction with a medium can reveal its microstructure and anisotropy beyond what can be obtained from scalar light interaction. Anisotropic properties (diattenuation, retardance, and…

光学 · 物理学 2024-02-26 Zhineng Xie , Guowu Huang , Weihao Lin , Xin Jin , Yifan Ge , Yansen Hu , Xiafei Qian , Min Xu

We consider the reflection of non-polarized radiation from the point-like sources above the accretion discs both the optically thick and optically thin. We investigate the dependence of the polarization of reflected radiation on the…

太阳与恒星天体物理 · 物理学 2018-06-26 N. A. Silant'ev , G. A. Alekseeva , V. V. Novikov

In this article we propose a numerical algorithm to compute the intensity and polarization of a polychromatic electromagnetic radiation crossing a medium with graded refractive index and modeled by the Vector Radiative Refractive Transfer…

偏微分方程分析 · 数学 2024-08-06 Olivier Pironneau

The mean volume reflection angle of a high-energy charged particle passing through a bent crystal is expressed as an integral involving the effective interplanar potential over a single crystal period. Implications for positively and…

加速器物理 · 物理学 2020-04-22 M. V. Bondarenco

We deduce the emissivity of radiation from a metallic surface as a function of angle and polarization. This effect has found application in the calibration of detectors for cosmic microwave background radiation.

光学 · 物理学 2007-05-23 David J , Strozzi , Kirk T. McDonald

We compute the radiation pressure force on a moving mirror, in the nonrelativistic approximation, assuming the field to be at temperature $T.$ At high temperature, the force has a dissipative component proportional to the mirror velocity,…

高能物理 - 理论 · 物理学 2011-07-19 L. A. S. Machado , P. A. Maia Neto , C. Farina

Relativistic tunnel ionization of atoms by intense, elliptically polarized light is considered. The relativistic version of the Landau-Dykhne formula is employed. The general analytical expression is obtained for the relativistic…

原子物理 · 物理学 2009-10-31 J. Ortner

The direct observation of cold and temperate planets within 1 to 10 AU would be extremely valuable for uncovering their atmospheric compositions but remains a formidable challenge with current astronomical methods. Ground-based optical…

地球与行星天体物理 · 物理学 2025-02-19 S. Lacour , Ó. Carrión-González , M. Nowak

We investigate the rotation of the polarization of a light ray propagating in the gravitational field of a circularly polarized laser beam. The rotation consists of a reciprocal part due to gravitational optical activity, and a…

广义相对论与量子宇宙学 · 物理学 2020-01-08 Fabienne Schneiter , Dennis Rätzel , Daniel Braun