Sub-Doppler spectroscopy by sub-micron thin Cs vapour layer

Sarkisyan, D.; Bloch, Daniel; Papoyan, A.; Ducloy, M.

doi:10.1016/s0030-4018(01)01604-2

Cited by 145 publications

(149 citation statements)

References 23 publications

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“…The transmission spectra used in this paper are from a nanometer-scale vapor cell, an ultrathin alkali-metal vapor cell with a thickness ranging from 2 μm to 30 nm [26]. These spectra feature peaks that have been narrowed by motional effects inside the cell (Dicke narrowing), discussed in our earlier papers [8,27].…”

Section: Experimental Methodsmentioning

confidence: 99%

Hilbert transform: Applications to atomic spectra

et al. 2015

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Publisher's copyright statement:Reprinted with permission from the American Physical Society: Whittaker, K. A. and Keveaney, J. and Hughes, I. G. and Adams, C. S. (2015) 'Hilbert transform : applications to atomic spectra.', Physical review A., 91 (3). 032513 c 2015 by the American Physical Society. Readers may view, browse, and/or download material for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this material may not be further reproduced, distributed, transmitted, modi ed, adapted, performed, displayed, published, or sold in whole or part, without prior written permission from the American Physical Society. Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. In many areas of physics, the Kramers-Kronig relations are used to extract information about the real part of the optical response of a medium from its imaginary counterpart. In this paper we discuss an alternative but mathematically equivalent approach based on the Hilbert transform. We apply the Hilbert transform to transmission spectra to find the group and refractive indices of a Cs vapor and thereby demonstrate how the Hilbert transform allows indirect measurement of the refractive index, group index, and group delay while avoiding the use of complicated experimental setups.

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Section: Experimental Methodsmentioning

confidence: 99%

Hilbert transform: Applications to atomic spectra

et al. 2015

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“…The ETC [2] consists of two YAG crystal windows that are glued together in such a way that the distance between them varies from 50 nm to 1.2 µm. It was produced at the Institute of Physical Research in Ashtarak, Armenia.…”

Section: Methodsmentioning

confidence: 99%

“…An additional thermocouple is attached to the cesium container for temperature measurements. For a more detailed description see [2].…”

Section: Methodsmentioning

confidence: 99%

Relaxation mechanisms affecting magneto-optical resonances in an extremely thin cell: Experiment and theory for the cesiumD1line

et al. 2015

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We have measured magneto-optical signals obtained by exciting the D1 line of cesium atoms confined to an extremely thin cell (ETC), whose walls are separated by less than one micrometer, and developed an improved theoretical model to describe these signals with experimental precision. The theoretical model was based on the optical Bloch equations and included all neighboring hyperfine transitions, the mixing of the magnetic sublevels in an external magnetic field, and the Doppler effect, as in previous studies. However, in order to model the extreme conditions in the ETC more realistically, the model was extended to include a unified treatment of transit relaxation and wall collisions with relaxation rates that were obtained directly from the thermal velocities of the atoms and the length scales involved. Furthermore, the interaction of the atoms with different regions of the laser beam were modeled separately to account for the varying laser beam intensity over the beam profile as well as saturation effects that become important near the center of the beam at the relatively high laser intensities used during the experiments in order to obtain measurable signals. The model described the experimentally measured signals for laser intensities for magnetic fields up to 55 G and laser intensities up to 1 W/cm 2 with excellent agreement.

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“…The fabrication of these cells needs a special technology that has been described elsewhere (see Ref. [6]). An important point is to know the cell thickness L accurately.…”

Section: Singular Properties Of Light Transmission In Ultra Thin Gas mentioning

confidence: 99%

Laser spectroscopy of nanometric gas cells

Ducloy

2004

Europhysics News

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Sub-Doppler spectroscopy by sub-micron thin Cs vapour layer

Cited by 145 publications

References 23 publications

Hilbert transform: Applications to atomic spectra

Hilbert transform: Applications to atomic spectra

Relaxation mechanisms affecting magneto-optical resonances in an extremely thin cell: Experiment and theory for the cesiumD1line

Laser spectroscopy of nanometric gas cells

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