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We consider rotation of polarization plane of the laser light when a gas laser is placed in a longitudinal electric field (10~kV/cm). It is shown that residual anisotropy of the laser cavity 10^{-6} and the sensitivity to the angle of…

Optics · Physics 2009-11-11 V. G. Baryshevsky , S. L. Cherkas , D. N. Matsukevich

We investigate the ground-state Hanle effect in alkali-metal vapor irradiating by a resonant elliptically polarized light wave. The magneto-optical resonances are observed as a change in the ellipticity parameter of the light wave…

Atomic Physics · Physics 2025-11-25 D. V. Brazhnikov , A. O. Makarov , K. S. Kozlova , A. N. Goncharov

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…

Atomic Physics · Physics 2009-09-29 Irina Novikova , Alexander Khanbekyan , David Sarkisyan , George R. Welch

Hall, resistivity, magnetization, and thermoelectric power measurements were performed on single crystals of the highly anisotropic layered metal LaSb2. A 100-fold linear magnetoresistance (MR) was observed in fields up to 45 T, with no…

Materials Science · Physics 2007-05-23 D. P. Young , J. F. DiTusa , R. G. Goodrich , D. Hall , J. Anderson , S. Guo , Julia Y. Chan , P. W. Adams

Optical and infrared continuum polarization from the interstellar medium is known to generally be due to irregular dust grains aligned with the magnetic field. This provides an important tool to probe the geometry and strength of those…

Astrophysics of Galaxies · Physics 2019-03-20 Ilija Medan , B-G Andersson

The operation of polarimetric based single beam three axis atomic magnetometer is studied. The magnetometer operates in presence of small bias magnetic field. Its salient features are compared with the analysis of Bloch equation. The…

Atomic Physics · Physics 2019-03-18 Swarupananda Pradhan , Rita Behera

We conducted a search for an exotic spin- and velocity-dependent interaction for polarized electrons with an experimental approach based on a high-sensitivity spin-exchange relaxation-free (SERF) magnetometer, which serves as both a source…

Instrumentation and Detectors · Physics 2018-09-12 Young Jin Kim , Ping-Han Chu , Igor Savukov

Structured light provides unique opportunities to spatially tailor the electromagnetic field of laser beams. This includes the possibility of a sub-wavelength spatial separation of their electric and magnetic fields, which would allow…

We report the performance of a magnetically silent optically pumped cesium magnetometer with a statistical sensitivity of 3.5 pT/rtHz at 1~Hz and a stability of 90 fT over 150 seconds of measurement. Optical pumping with coherent,…

We introduce an alternative approach to the first-principles calculation of NMR shielding tensors. These are obtained from the derivative of the orbital magnetization with respect to the application of a microscopic, localized magnetic…

Materials Science · Physics 2009-09-08 T. Thonhauser , D. Ceresoli , Arash A. Mostofi , Nicola Marzari , R. Resta , David Vanderbilt

For filter-based magnetographs, the linear calibration method under the weak-field assumption is usually adopted; this leads to magnetic saturation effect in the regions with strong magnetic field. This article explores a new method to…

Instrumentation and Methods for Astrophysics · Physics 2020-02-07 JingJing Guo , XianYong Bai , YuanYong Deng , Hui Liu , JiaBen Lin , JiangTao Su , Xiao Yang , KaiFan Ji

We introduce a micromachined force scale for laser power measurement by means of radiation pressure sensing. With this technique, the measured laser light is not absorbed and can be utilized while being measured. We employ silicon…

A multi-channel atomic magnetometer operating in an unshielded environment is described and characterised. The magnetometer is based on D1 optical pumping and D2 polarimetry of Cs vapour contained in gas-buffered cells. Several technical…

Instrumentation and Detectors · Physics 2016-04-14 Giuseppe Bevilacqua , Valerio Biancalana , Piero Chessa , Yordanka Dancheva

We report on the development of a microfabricated atomic magnetic gradiometer based on optical spectroscopy of alkali atoms in the vapor phase. The gradiometer, which operates in the spin-exchange relaxation free regime, has a length of 60…

Instrumentation and Detectors · Physics 2017-02-14 Dong Sheng , Abigail R. Perry , Sean P. Krzyzewski , Shawn Geller , John Kitching , Svenja Knappe

We predict a non-thermal magneto-optical effect for magnetic insulators subject to intense light carrying orbital angular momentum (OAM). Using a classical approach to second harmonic generation in non-linear media with specific symmetry…

Mesoscale and Nanoscale Physics · Physics 2014-10-17 Thomas Bose , Jamal Berakdar

The magnetic field of the solar wind near the Sun is very difficult to measure directly. Measurements of Faraday rotation of linearly polarized radio sources occulted by the solar wind provide a unique opportunity to estimate this magnetic…

Solar and Stellar Astrophysics · Physics 2015-06-04 X. P. You , W. A. Coles , G. B. Hobbs , R. N. Manchester

We consider the application of the magnetic flux leakage (MFL) method to the detection of defects in ferromagnetic (steel) tubulars. The problem setup corresponds to the cases where the distance from the casing and the point where the…

Data Analysis, Statistics and Probability · Physics 2015-11-10 Anastasiya V. Pimenova , Denis S. Goldobin , Jeremy Levesley , Andrey O. Ivantsov , Peter Elkington , Mark Bacciarelli

We describe our approach to atomic magnetometry based on the push-pull optical pumping technique. Cesium vapor is pumped and probed by a resonant laser beam whose circular polarization is modulated synchronously with the spin evolution…

Atomic Physics · Physics 2015-06-18 E. Breschi , Z. D. Grujic , P. Knowles , A. Weis

It is a common practice in the solar physics community to test whether or not measured photospheric or chromospheric vector magnetograms are force-free, using the Maxwell stress as a measure. Some previous studies have suggested that…

Solar and Stellar Astrophysics · Physics 2017-01-11 X. M. Zhang , M. Zhang , J. T. Su

As part of the spin physics program at Jefferson Laboratory (JLab), a M\o ller polarimeter was developed to measure the polarization of electron beam of energies 0.8 to 5.0 GeV. A unique signature for M\o ller scattering is obtained using a…