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We report on a combined experimental and theoretical study of polarization self-rotation in an ultracold atomic sample. In the experiments, a probe laser is tuned in the spectral vicinity of the D1 line to observe polarization self-rotation…

原子物理 · 物理学 2013-03-14 Travis Horrom , Salim Balik , Arturo Lezama , Mark D. Havey , Eugeniy E. Mikhailov

We report the first measurements of linear and nonlinear magneto-optical polarization rotation on an intercombination transition of Ba vapor (lambda= 791.1nm). We observe a maximum polarization rotation angle in Faraday configuration of…

原子物理 · 物理学 2009-09-29 Irina Novikova , Alexander Khanbekyan , David Sarkisyan , George R. Welch

Radio interferometric observations of Active Galactic Nuclei (AGN) jets reveal the significant linear polarization of their synchrotron radiation that changes with frequency due to the Faraday rotation. It is generally assumed that such…

星系天体物理 · 物理学 2024-11-06 E. Yushkov , I. N. Pashchenko , D. D. Sokoloff , G. Chumarin

We propose a universal scheme for the construction of a device for arbitrary to arbitrary polarization transformation, which consists of two quarter-wave plates and two Faraday rotators. Using this device, one can continuously change the…

光学 · 物理学 2020-11-17 Elena Stoyanova , Svetoslav Ivanov , Andon Rangelov

We report on a giant Faraday effect in an electron plasma in n-InSb probed via polarization-resolved terahertz (THz) time-domain spectroscopy. Polarization rotation angles and ellipticities reach as large as {\pi}/2 and 1, respectively,…

光学 · 物理学 2012-08-24 T. Arikawa , X. Wang , A. A. Belyanin , J. Kono

We analyze the structure of the vacuum polarization tensor in the presence of a background electromagnetic field in a medium. We use various discrete symmetries and crossing symmetry to constrain the form factors obtained for the most…

高能物理 - 唯象学 · 物理学 2016-08-25 Avijit K. Ganguly , Sushan Konar , Palash B. Pal

Our modelling of FR I radio jets as decelerating, relativistic flows allows us to derive their orientations accurately. We present images of Faraday rotation for two of these these objects (3C 31 and NGC 315) and show that the fluctuations…

天体物理学 · 物理学 2009-11-11 R. A. Laing , J. R. Canvin , W. D. Cotton , A. H. Bridle , P. Parma

The existence of a primordial magnetic field at the last scattering surface may induce a measurable Faraday rotation in the polarization of the cosmic microwave background. We calculate the magnitude of this effect by evolving the radiative…

天体物理学 · 物理学 2009-10-28 Abraham Loeb , Arthur Kosowsky

Magnetized plasmas traversed by linearly polarized light will reveal their presence by the frequency dependent Faraday rotation of the angle of polarization. The regions surrounding the black holes powering the jets in AGNs are expected to…

星系天体物理 · 物理学 2016-01-12 W. D. Cotton , E. Kravchenko , Y. Kovalev , E. Fomalont

Faraday Rotation Measure (RM) Synthesis, as a method for analyzing multi-channel observations of polarized radio emission to investigate galactic magnetic fields structures, requires the definition of complex polarized intensity in the…

星系天体物理 · 物理学 2015-05-14 P. Frick , D. Sokoloff , R. Stepanov , R. Beck

Collisionless plasmas are ubiquitous in the Universe. In general full kinetic equations are needed for a correct description of the physics in such environments. Fluid approximations are, at some special cases, valid. In this work we…

宇宙学与河外天体物理 · 物理学 2011-10-28 Diego Falceta-Goncalves

This paper examines the radiative transfer of synchrotron radiation in the presence of a magnetic field configuration resulting from the compression of a highly disordered magnetic field. It is shown that, provided Faraday rotation and…

高能天体物理现象 · 物理学 2015-06-22 T. V. Cawthorne , P. A. Hughes

Generalised Faraday rotation can induce frequency-dependent conversion between the linear and circular polarisation spectra of compact radio sources such as pulsars, fast radio bursts and active galactic nuclei. I devise a simple…

高能天体物理现象 · 物理学 2021-08-24 Marcus E. Lower

We have analyzed analytically the Faraday rotation of an electromagnetic wave for magnetoactive thin metallic film with a nanostructured surface profile. Periodical as well as random surface profiles were considered. The plasmon…

介观与纳米尺度物理 · 物理学 2014-02-21 Zhyrair Gevorkian , Vladimir Gasparian

Equipartition magnetic fields can dramatically affect the polarization of radiation emerging from accretion disk atmospheres in active galactic nuclei. We extend our previous work on this subject by exploring the interaction between Faraday…

天体物理学 · 物理学 2009-10-28 Eric Agol , Omer Blaes , Cristian Ionescu-Zanetti

The observed magnetization switching by circularly polarized ultrafast laser pulses has been attributed to the inverse Faraday effect in which the induced non-equilibrium orbital momentum serves as an effective magnetic filed via spin-orbit…

介观与纳米尺度物理 · 物理学 2017-03-30 Anirban Kundu , Shufeng Zhang

We calculate the polarization of radiation from thick accretion disks with vertically averaged global magnetic field. The polarization arises as a result of the radiation scattering by free electrons in magnetized plasma of a disk. We…

天体物理学 · 物理学 2007-05-23 Yu. N. Gnedin , N. A. Silant'ev , P. S. Shternin

We present a detailed theoretical and experimental study of the rotation of the plane of polarization of light traveling through a gas of fast-spinning molecules. This effect is similar to the polarization drag phenomenon predicted by Fermi…

We extend the rotation measure work of Burn (1966) to the cases of limited sampling of lambda squared space and non-constant emission spectra. We introduce the rotation measure transfer function (RMTF), which is an excellent predictor of…

天体物理学 · 物理学 2009-11-13 M. A. Brentjens , A. G. de Bruyn

We confirm the reality of a reversal of the sign of the Faraday Rotation Measure in the Galactic plane in Cygnus (Lazio et al, 1990), possibly associated with the Cygnus OB1 association. The rotation measure changes by several hundred…

天体物理学 · 物理学 2009-06-23 Catherine A. Whiting , Steven R. Spangler , Laura D. Ingleby , L. Matthew Haffner