Results 61 to 70 of about 69,772 (198)

The depolarisation properties of powerful extragalactic radio sources as a function of cosmic epoch

open access: yes, 2005
We use the observed polarisation properties of a sample of 26 powerful radio galaxies and radio-loud quasars to constrain the conditions in the Faraday screens local to the sources.
Akujor   +49 more
core   +1 more source

Coherent Perfect Rotation

open access: yes, 2012
Two classes of conservative, linear, optical rotary effects (optical activity and Faraday rotation) are distinguished by their behavior under time reversal.
Andrews, James H.   +2 more
core   +1 more source

Effect of pump-probe detuning on the Faraday rotation and ellipticity signals of mode-locked spins in InGaAs quantum dots

open access: yes, 2010
We have studied the Faraday rotation and ellipticity signals in ensembles of singly-charged (In,Ga)As/GaAs quantum dots by pump-probe spectroscopy. For degenerate pump and probe we observe that the Faraday rotation signal amplitude first grows with ...
A. D. Wieck   +10 more
core   +1 more source

Faraday rotation and polarization gradients in the jet of 3C~120: Interaction with the external medium and a helical magnetic field?

open access: yes, 2008
We present a sequence of 12 monthly polarimetric 15, 22, and 43 GHz VLBA observations of the radio galaxy 3C 120 revealing a systematic presence of gradients in Faraday rotation and degree of polarization across and along the jet.
Alan P. Marscher   +22 more
core   +1 more source

Curved space-time corrections to Faraday rotation in magnetized plasmas far from Schwarzschild black holes

open access: yesAstronomy & Astrophysics
Context. In this manuscript, we analyze the effect of Schwarzschild space-time curvature on the Faraday rotation of quasi-monochromatic circularly polarized electromagnetic waves. Aims.
Asenjo Felipe A.   +3 more
doaj   +1 more source

Nonlinear field-dependence and f-wave interactions in superfluid 3He

open access: yes, 2012
We present results of transverse acoustics studies in superfluid ^{3}He-B at fields up to 0.11 T. Using acoustic cavity interferometry, we observe the Acoustic Faraday Effect for a transverse sound wave propagating along the magnetic field, and we ...
C. A. Collett   +7 more
core   +1 more source

Rotation Measure Jitter: Wavelength-dependent Scatter in Rotation Measure Related to Faraday Complexity

open access: yesThe Astrophysical Journal
The relation between Faraday rotation measure (RM) and differential Faraday rotation by unresolved structure of a turbulent plasma is investigated for extragalactic radio sources.
Jeroen M. Stil
doaj   +1 more source

Quantum Magneto-Optics in Graphene

open access: yesPhotonics, 2015
The optical conductivity of graphene in quantizing magnetic fields is studied. Both dynamical conductivities, longitudinal and Hall’s, are analytically evaluated. The conductivity peaks are explained in terms of electron transitions.
Leonid Falkovsky
doaj   +1 more source

Resonance enhancement of magnetic Faraday rotation

open access: yes, 2008
Magnetic Faraday rotation is widely used in optics. In natural transparent materials, this effect is very weak. One way to enhance it is to incorporate the magnetic material into a periodic layered structure displaying a high-Q resonance.
Figotin, Alex, Vitebskiy, Ilya
core  

Gravoelectromagnetic approach to the gravitational Faraday rotation in stationary spacetimes

open access: yes, 1999
Using the 1+3 formulation of stationary spacetimes we show, in the context of gravoelectromagnetism, that the plane of the polarization of light rays passing close to a black hole undergoes a rotation.
Nouri-Zonoz, Mohammad
core   +1 more source

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