Measurement of longitudinal and transverse spin relaxation rates using the ground-state Hanle effect

Castagna, N.; Weis, A.

doi:10.1103/physreva.84.053421

Cited by 53 publications

(35 citation statements)

References 26 publications

(36 reference statements)

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“…Franzen's method has been modified and used by other groups to determine both population and coherence relaxation times in Rb or Cs wall-coated vapor cells [13][14][15][16]. Moreover, methods of nonlinear magneto-optical rotation [11,17], ground-state Hanle effect [18,19] and optically detected magnetic resonance [19,20] were employed to measure the hyperfine and the Zeeman relaxation times in wall-coated or in buffer-gas alkali vapor cells. Various modified NMR spin-echo techniques [21] have been studied both theoretically and experimentally for solid-state systems to extend the coherence time [22,23].…”

Section: Introductionmentioning

confidence: 99%

Optically-detected spin-echo method for relaxation times measurements in a Rb atomic vapor

et al. 2017

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are relevant. Our ODSE method is inspired by classical nuclear magnetic resonance spin-echo method, combined with optical detection. In contrast to other existing methods, like continuous-wave double-resonance (CW-DR) and Ramsey-DR, principles of the ODSE method allow suppression of decoherence arising from the inhomogeneity of the static magnetic field across the vapor cell, thus enabling measurements of intrinsic relaxation rates, as properties of the cell alone. Our experimental result for the coherence relaxation time, specific for the clock transition, measured with the ODSE method is in good agreement with the theoretical prediction, and the ODSE results are validated by comparison to those obtained with Franzen, CW-DR and Ramsey-DR methods. The method is of interest for a wide variety of quantum optics experiments with optical signal readout.

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Section: Introductionmentioning

confidence: 99%

Optically-detected spin-echo method for relaxation times measurements in a Rb atomic vapor

et al. 2017

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“…The experiment is performed in the Hanle configuration: pump and probe beams are obtained from the same nonmodulated laser source and EIT resonances are observed at zero magnetic field [22,23]. This arrangement is particularly appealing for practical applications; however, our system can be adapted to other configurations.…”

Section: Experimental Apparatusmentioning

confidence: 99%

All-optical vapor density control for electromagnetically induced transparency

et al. 2012

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We demonstrate the feasibility of coherent spectroscopy experiments in alkali vapors at room temperature by using an automatic all-optical atomic dispenser. The reliability of the system is proved by observing electromagnetically induced transparency (EIT) resonances in siloxane-coated cells where large and stable K densities are achieved by light-controlled atomic desorption from the cell coating. The experimental results prove that this technique preserves the orientation of the atomic system, and, at the same time, allows a fine, continuous, and rapid control of the vapor density also suitable for magnetic-sensitive applications. (c) 2012 Optical Society of Americ

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“…It was shown in Ref. [10] that the steady-state value m ss 1,0 that the longitudinal orientation reaches by virtue of the GSHE is given by the Hanle function…”

Section: Fluorescence Of Spin-oriented Atoms In An Inhomogeneous Magnmentioning

confidence: 99%

Imaging magnetic scalar potentials by laser-induced fluorescence from bright and dark atoms

Fescenko

Weis

2014

J. Phys. D: Appl. Phys.

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Abstract. We present a spectroscopic method for mapping two-dimensional distributions of magnetic field strengths (magnetic scalar potential lines) using CCD recordings of the fluorescence patterns emitted by spin-polarized Cs vapor in a buffer gas exposed to inhomogeneous magnetic fields. The method relies on the positionselective destruction of spin polarization by magnetic resonances induced by multicomponent oscillating magnetic fields, such that magnetic potential lines can directly be detected by the CCD camera. We also present a generic algebraic model allowing the calculation of the fluorescence patterns and find excellent agreement with the experimental observations for three distinct inhomogeneous field topologies. The spatial resolution obtained with these proof-of-principle experiments is on the order of 1 mm. A substantial increase of spatial and magnetic field resolution is expected by deploying the method in a magnetically shielded environment.

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Measurement of longitudinal and transverse spin relaxation rates using the ground-state Hanle effect

Cited by 53 publications

References 26 publications

Optically-detected spin-echo method for relaxation times measurements in a Rb atomic vapor

Optically-detected spin-echo method for relaxation times measurements in a Rb atomic vapor

All-optical vapor density control for electromagnetically induced transparency

Imaging magnetic scalar potentials by laser-induced fluorescence from bright and dark atoms

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