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We have developed a technique in which Rb atomic response to weak magnetic field is high and an efficient rotation of linearly polarized laser beam results in efficient magnetometry. 85Rb isotope has been used for the magnetometry in an…

原子物理 · 物理学 2011-01-21 S. M. Iftiquar

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

We demonstrate controlled polarization rotation of an optical field conditional on the presence of a second field. Induced rotations of greater than pi/2 rad are seen with a transmission of 95%, corresponding to a ratio of phase shift to…

原子物理 · 物理学 2010-04-29 Paul Siddons , Charles S. Adams , Ifan G. Hughes

Magnetic fields play an important role in plasma dynamics, yet it is a quantity difficult to measure accurately with physical probes, whose presence disturbs the very field they measure. The Faraday rotation of a polarized beam of light…

When an off-resonant light field is coupled with atomic spins, its polarization can rotate depending on the direction of the spins via a Faraday rotation which has been used for monitoring and controlling the atomic spins. We observed…

Optical Faraday rotation is one of the most direct and practically important manifestations of magnetically broken time-reversal symmetry. The rotation angle is proportional to the distance traveled by the light, and up to now sizeable…

We report observation of the paramagnetic Faraday rotation of spin-polarized ytterbium (Yb) atoms. As the atomic samples, we used an atomic beam, released atoms from a magneto-optical trap (MOT), and trapped atoms in a far-off-resonant trap…

量子物理 · 物理学 2009-11-11 M. Takeuchi , T. Takano , S. Ichihara , Y. Takasu , M. Kumakura , T. Yabuzaki , Y. Takahashi

Atom sensing based on Faraday rotation is an indispensable method for precision measurements, universally suitable for both hot and cold atomic systems. Here we demonstrate an all-optical magnetometer where the optical cell for Faraday…

原子物理 · 物理学 2015-10-06 Herbert Crepaz , Li Yuan Ley , Rainer Dumke

Faraday rotation of a laser field induced by a single atom is demonstrated by tightly focussing a linearly polarized laser beam onto a laser-cooled ion held in a harmonic Paul trap. The polarization rotation signal is further used to…

原子物理 · 物理学 2012-12-20 G. Hétet , L. Slodička , N. Röck , R. Blatt

Atomic beams are powerful tools for measuring spin coherence in hot vapors but require bulky setups, limiting device miniaturization. We demonstrate that micron-thin vapor cells can mimic atomic beam behavior by exploiting…

量子物理 · 物理学 2025-06-18 Mark Dikopoltsev , Eliran Talker , Yefim Barash , Noa Mazurski , Uriel Levy

We propose a quantum non-demolition method - giant Faraday rotation - to detect a single electron spin in a quantum dot inside a microcavity where negatively-charged exciton strongly couples to the cavity mode. Left- and right-circularly…

量子物理 · 物理学 2009-11-13 C. Y. Hu , A. Young , J. L. O'Brien , J. G. Rarity

We experimentally studied the Faraday rotation of resonant light in an optically-thick cloud of laser-cooled rubidium atoms. Measurements yield a large Verdet constant in the range of 200 000 degrees/T/mm and a maximal polarization rotation…

原子物理 · 物理学 2009-11-07 G. Labeyrie , C. Miniatura , R. Kaiser

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

Faraday rotation has become a powerful tool in a large variety of physics applications. Most prominently, Faraday rotation can be used in precision magnetometry. Here we report the first measurements of gyromagnetic Faraday rotation on a…

原子物理 · 物理学 2019-02-27 Josh Abney , Mark Broering , Murchhana Roy , Wolfgang Korsch

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…

原子物理 · 物理学 2015-05-14 Adam Wojciechowski , Eric Corsini , Jerzy Zachorowski , Wojciech Gawlik

We demonstrate Faraday spectroscopy with high duty cycle and sampling rate using atoms confined to a blue-detuned optical trap. Our trap consists of a crossed pair of high-charge-number hollow laser beams, which forms a dark, box-like…

量子物理 · 物理学 2009-11-13 Matthew L. Terraciano , Mark Bashkansky , Fredrik Fatemi

We report the experimental observation of the rotation of the polarization plane of light propagating in a gas of fast-spinning molecules (molecular super-rotors). In the observed effect, related to Fermi's prediction of "polarization drag"…

原子物理 · 物理学 2021-08-18 Alexander A. Milner , Uri Steinitz , Ilya Sh. Averbukh , Valery Milner

Faraday Rotation-Conversion is the simultaneous rotation of all three Stokes polarization parameters $Q$, $U$, $V$ as an electromagnetic wave propagates through a magnetized plasma. In this regime the Faraday plasma screen is characterized…

高能天体物理现象 · 物理学 2019-05-15 Andrei Gruzinov , Yuri Levin

By Faraday-rotation fluctuation spectroscopy one measures the spin noise via Faraday-induced fluctuations of the polarization plane of a laser transmitting the sample. In the fist part of this paper, we present a theoretical model of recent…

介观与纳米尺度物理 · 物理学 2009-11-11 Matthias Braun , Jürgen König

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…

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