Physical Review A

Measurement of correlated multiple light scattering in ultracold atomic 85Rb

P. Kulatunga, Charles I. Sukenik, Salim Balik, Mark D. Havey, Dmitriy V. Kupriyanov, Igor M. Sokolov

Published Sep 29, 2003• 29 citations

Abstract

We report an experimental study of correlated multiple light scattering in an ultracold gas of ${}^{85}\mathrm{Rb}$ confined in a magneto-optic trap. Measurements are made of the polarization dependence of the spatial and spectral profile of light backscattered from the sample. The results show an interferometric enhancement sensitive to coherent multiple scattering in the atomic gas, and strong variations with the polarization of the incident and detected light. The spatial width and peak value of the enhancement are found to be dependent on the sample size. Comparison of all the measurements with realistic quantum Monte Carlo simulations yields a very good agreement.

DOI: 10.1103/physreva.68.033816

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Physical Review A

Measurement of correlated multiple light scattering in ultracold atomic 85Rb

P. Kulatunga, Charles I. Sukenik, Salim Balik, Mark D. Havey, Dmitriy V. Kupriyanov, Igor M. Sokolov

Published Sep 29, 2003• 29 citations

Publisher

Abstract

We report an experimental study of correlated multiple light scattering in an ultracold gas of

{}^{85}\mathrm{Rb}

confined in a magneto-optic trap. Measurements are made of the polarization dependence of the spatial and spectral profile of light backscattered from the sample. The results show an interferometric enhancement sensitive to coherent multiple scattering in the atomic gas, and strong variations with the polarization of the incident and detected light. The spatial width and peak value of the enhancement are found to be dependent on the sample size. Comparison of all the measurements with realistic quantum Monte Carlo simulations yields a very good agreement.

DOI: 10.1103/physreva.68.033816

Related papers

Coherent Backscattering of Light From an Ultra Cold Gas of Rubidium-85 Atoms

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This thesis reports on the experimental study of coherent radiative transport in an ultracold gas of 85Rb atoms confined in a magneto-optic trap. Measurements are made of the polarization dependence of the spatial and spectral profile of light backscattered from the sample. The results shows an interferometric enhancement sensitive to coherent multiple scattering in the atomic gas, and strong variations with the polarization of the incident and detected light. Effects due to coherent enhancement of weak non-resonant transitions are also observed. Comparison of the measurements with realistic quantum Monte Carlo simulations of Kupriyanov, et al [1] yield very good agreement.This thesis reports on the experimental study of coherent radiative transport in an ultracold gas of 85Rb atoms confined in a magneto-optic trap. Measurements are made of the polarization dependence of the spatial and spectral profile of light backscattered from the sample. The results shows an interferometric enhancement sensitive to coherent multiple scattering in the atomic gas, and strong variations with the polarization of the incident and detected light. Effects due to coherent enhancement of weak non-resonant transitions are also observed. Comparison of the measurements with realistic quantum Monte Carlo simulations of Kupriyanov, et al [1] yield very good agreement.

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Development of a theoretical treatment of multiple coherent light scattering in an ultracold atomic gas is reported. Specific application is made to coherent backscattering of a weak-radiation field from realistically modeled samples of ultracold atomic ${}^{85}\mathrm{Rb}.$ Comprehensive Monte Carlo simulations of the spatial, spectral, and polarization dependence of the backscattering line shape are made and compared with available experimental results.Development of a theoretical treatment of multiple coherent light scattering in an ultracold atomic gas is reported. Specific application is made to coherent backscattering of a weak-radiation field from realistically modeled samples of ultracold atomic ${}^{85}\mathrm{Rb}.$ Comprehensive Monte Carlo simulations of the spatial, spectral, and polarization dependence of the backscattering line shape are made and compared with available experimental results.

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A combined experimental and theoretical investigation of time- and alignment-dependent propagation of light in an ultracold atomic gas of atomic $^{85}\mathrm{Rb}$ is reported. Coherences among the scattering amplitudes for light scattering off excited hyperfine levels produce strong variations of the light polarization in the vicinity of atomic resonance. Measurements are in excellent agreement with Monte Carlo simulations of the multiple scattering process.A combined experimental and theoretical investigation of time- and alignment-dependent propagation of light in an ultracold atomic gas of atomic $^{85}\mathrm{Rb}$ is reported. Coherences among the scattering amplitudes for light scattering off excited hyperfine levels produce strong variations of the light polarization in the vicinity of atomic resonance. Measurements are in excellent agreement with Monte Carlo simulations of the multiple scattering process.

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We report a combined theoretical and experimental study of the spectral and polarization dependence of near-resonant radiation coherently backscattered from an ultracold gas of $^{85}\mathrm{Rb}$ atoms. Measurements in a $\ifmmode\pm\else\textpm\fi{}6\phantom{\rule{0.3em}{0ex}}\text{MHz}$ range about the $5s\phantom{\rule{0.3em}{0ex}}^{2}S_{1∕2}\ensuremath{\rightarrow}5p\phantom{\rule{0.3em}{0ex}}^{2}P_{3∕2}$, $F=3\ensuremath{\rightarrow}{F}^{\ensuremath{'}}=4$ hyperfine transition are compared with simulations based on a realistic model of the experimental atomic density distribution. In the simulations, the influence of heating of the atoms in the vapor, magnetization of the vapor, finite spectral bandwidth, and other nonresonant hyperfine transitions are considered. Good agreement is found between the simulations and measurements.We report a combined theoretical and experimental study of the spectral and polarization dependence of near-resonant radiation coherently backscattered from an ultracold gas of $^{85}\mathrm{Rb}$ atoms. Measurements in a $\ifmmode\pm\else\textpm\fi{}6\phantom{\rule{0.3em}{0ex}}\text{MHz}$ range about the $5s\phantom{\rule{0.3em}{0ex}}^{2}S_{1∕2}\ensuremath{\rightarrow}5p\phantom{\rule{0.3em}{0ex}}^{2}P_{3∕2}$, $F=3\ensuremath{\rightarrow}{F}^{\ensuremath{'}}=4$ hyperfine transition are compared with simulations based on a realistic model of the experimental atomic density distribution. In the simulations, the influence of heating of the atoms in the vapor, magnetization of the vapor, finite spectral bandwidth, and other nonresonant hyperfine transitions are considered. Good agreement is found between the simulations and measurements.

arXiv:quant-ph/0305036Physical Review AMar 1, 200432 citations

Coherent Backscattering of Light by Cold Atoms

G. Labeyrie, F. De Tomasi, J.-C. Bernard +3 more

arXiv:physics/9911010Physical Review LettersDec 20, 1999268 citations

We report an experimental study of correlated multiple light scattering in an ultracold gas of

{}^{85}\mathrm{Rb}

{}^{85}\mathrm{Rb}.

Comprehensive Monte Carlo simulations of the spatial, spectral, and polarization dependence of the backscattering line shape are made and compared with available experimental results.

A combined experimental and theoretical investigation of time- and alignment-dependent propagation of light in an ultracold atomic gas of atomic

^{85}\mathrm{Rb}

is reported. Coherences among the scattering amplitudes for light scattering off excited hyperfine levels produce strong variations of the light polarization in the vicinity of atomic resonance. Measurements are in excellent agreement with Monte Carlo simulations of the multiple scattering process.

We report a combined theoretical and experimental study of the spectral and polarization dependence of near-resonant radiation coherently backscattered from an ultracold gas of

^{85}\mathrm{Rb}

atoms. Measurements in a $\ifmmode\pm\else\textpm\fi{}6\phantom{\rule{0.3em}{0ex}}\text{MHz}$ range about the $5s\phantom{\rule{0.3em}{0ex}}^{2}S_{1∕2}\ensuremath{\rightarrow}5p\phantom{\rule{0.3em}{0ex}}^{2}P_{3∕2}$, $F=3\ensuremath{\rightarrow}{F}^{\ensuremath{'}}=4$ hyperfine transition are compared with simulations based on a realistic model of the experimental atomic density distribution. In the simulations, the influence of heating of the atoms in the vapor, magnetization of the vapor, finite spectral bandwidth, and other nonresonant hyperfine transitions are considered. Good agreement is found between the simulations and measurements.