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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…

Atomic Physics · Physics 2013-03-14 Travis Horrom , Salim Balik , Arturo Lezama , Mark D. Havey , Eugeniy E. Mikhailov

Optical forces allow manipulation of small particles and control of nanophotonic structures with light beams. Here, we describe a counter-intuitive lateral optical force acting on particles placed above a substrate, under uniform plane wave…

Much of the information about the magnetic field in the Milky Way and other galaxies comes from measurements which are path integrals, such as Faraday rotation and the polarization of synchrotron radiation of cosmic ray electrons. The…

Astrophysics of Galaxies · Physics 2021-01-05 Steven R. Spangler

We report on experimental and theoretical study of the nonlinear Faraday effect under conditions of electromagnetically induced transparency at the 5$S_{1/2} \to 5P_{3/2} \to 5D_{5/2}$ two-photon transition in rubidium vapors. These…

Optics · Physics 2015-05-13 R. Drampyan , S. Pustelny , W. Gawlik

Optical activity, like Faraday effect, is a rotation of the plane of polarization of propagating light in a medium and can be attributed to different sources with distinct signatures. In this note we discuss the effect of optical activity…

Astrophysics · Physics 2009-11-10 Avijit K. Ganguly , R. Parthasarathy

We report on the first observation of nonlinear Faraday rotation with cold atoms at a temperature of ~100 uK. The observed nonlinear rotation of the light polarization plane is up to 0.1 rad over the 1 mm size atomic cloud in approximately…

Atomic Physics · Physics 2015-05-14 Adam Wojciechowski , Eric Corsini , Jerzy Zachorowski , Wojciech Gawlik

In previous decades significant efforts have been devoted to increasing the magneto-optical efficiency of iron garnet materials for the miniaturization of nonreciprocal devices such as isolators and circulators. Elemental substitutions or…

Using one-dimensional models, we show that a helical magnetic field with an appropriate sign of helicity can compensate the Faraday depolarization resulting from the superposition of Faraday-rotated polarization planes from a spatially…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-23 Axel Brandenburg , Rodion Stepanov

The Inverse problem for an electromagnetic field produced by a dipole is solved. It is assumed that the field of an arbitrary changing dipole is known. Obtained formulae allow calculation of the position and dynamics of the dipole which…

Classical Physics · Physics 2015-09-10 V. Epp , J. Janz

The spin-orbit interaction enables interconversion between a charge current and a spin current. It is usually believed that in a nonmagnetic metal (NM) or at a NM/ferromagnetic metal (FM) bilayer interface, the symmetry of spin-orbit…

We show that the Faraday effect can be derived from a simple two-state model. This approach uses a quantized electromagnetic field and does not make reference to differences in refractive indices of left- and right-circularly polarized…

Quantum Physics · Physics 2024-10-04 Benjamin W. Butler

We show how a medium, under the influece of a coherent control field which is resonant or close to resonance to an appropriate atomic transition, can lead to very strong asymmetries in the propagation of unpolarized light when the direction…

Quantum Physics · Physics 2009-11-07 G. S. Agarwal , Shubhrangshu Dasgupta

The magnetosphere of a pulsar is composed of relativistic plasmas streaming along the magnetic field lines and corotating with the pulsar. We study the intrinsic Faraday rotation in the pulsar magnetosphere by critically examining the wave…

Solar and Stellar Astrophysics · Physics 2015-05-28 Chen Wang , Jinlin Han , Dong Lai

Ultrafast spin dynamics in a magnetically compensated rare earth iron garnet film driven by femtosecond optical pulses through the inverse Faraday effect is theoretically investigated. Numerical simulations based on the equations of motion…

Materials Science · Physics 2026-05-15 N. I. Gribova , D. O. Ignatyeva , N. A. Gusev , A. K. Zvezdin , V. I. Belotelov

In regions with strongly varying electron density, radio emission can be magnified significantly by plasma lensing. In the presence of magnetic fields, magnification in time and frequency will be different for two circular polarizations. We…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Dongzi Li , Fang Xi Lin , Robert Main , Ue-Li Pen , Marten H. van Kerkwijk , I-Sheng Yang

Recent experiments demonstrate precise control over coherently excited circular phonon modes using high-intensity terahertz lasers, opening new pathways towards dynamical, ultrafast design of magnetism in functional materials. While the…

We investigate experimentally and theoretically the Faraday effect in an atomic medium in the hyperfine Paschen-Back regime, where the Zeeman interaction is larger than the hyperfine splitting. We use a small permanent magnet and a…

Atomic Physics · Physics 2014-03-27 Mark A Zentile , Rebecca Andrews , Lee Weller , Svenja Knappe , Charles S Adams , Ifan G Hughes

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…

Astrophysics · Physics 2009-10-28 Eric Agol , Omer Blaes , Cristian Ionescu-Zanetti

We study nonperturbative multiphoton electron-positron pair creation in ultrastrong electromagnetic fields formed by two counterpropagating pulses with elliptic polarization. Our numerical approach allows us to take into account the…

Atomic Physics · Physics 2015-06-25 Anton Wöllert , Heiko Bauke , Christoph H. Keitel

Antiferromagnets are a promising platform for next-generation spintronics due to their ultrafast spin dynamics and robustness to external fields. All-optical control of antiferromagnetic order is essential to fully exploit their potential…