We present the first experimental observation of atomic spin randomization of Rb atoms released by light-induced atomic desorption (LIAD). A natural mixture of Rb atoms contained in paraffin and PDMS coated glass cells is irradiated by a free-running diode laser light tuned to the Rb D2 resonance line. The transmission spectrum of the Rb vapor is thus modified and shows a strong enhancement of the hyperfine optical pumping as the light intensity is increased and the laser-frequency scanning rate is decreased. The D2 line spectra are compared for two cases: without and with illumination of the walls of the cell by a UV lamp centered around the wavelength of 404 nm. A simple theoretical model based on the solution of the rate balance equations is introduced in order to analyze the experimental results.

Dancheva, Y., Marinelli, C., Mariotti, E., Gozzini, S., Marmugi, L., Zampelli, M.R., et al. (2014). Spin randomization of light-induced desorbed Rb atoms. In 18th International Summer School on Vacuum, Electron and Ion Technologies (VEIT2013) 7–11 October 2013, Sozopol, Bulgaria. Bristol : Institute of Physics Publishing [10.1088/1742-6596/514/1/012029].

Spin randomization of light-induced desorbed Rb atoms

Dancheva, Y.;Marinelli, C.;Mariotti, E.;Marmugi, L.;Moi, L.;
2014-01-01

Abstract

We present the first experimental observation of atomic spin randomization of Rb atoms released by light-induced atomic desorption (LIAD). A natural mixture of Rb atoms contained in paraffin and PDMS coated glass cells is irradiated by a free-running diode laser light tuned to the Rb D2 resonance line. The transmission spectrum of the Rb vapor is thus modified and shows a strong enhancement of the hyperfine optical pumping as the light intensity is increased and the laser-frequency scanning rate is decreased. The D2 line spectra are compared for two cases: without and with illumination of the walls of the cell by a UV lamp centered around the wavelength of 404 nm. A simple theoretical model based on the solution of the rate balance equations is introduced in order to analyze the experimental results.
Dancheva, Y., Marinelli, C., Mariotti, E., Gozzini, S., Marmugi, L., Zampelli, M.R., et al. (2014). Spin randomization of light-induced desorbed Rb atoms. In 18th International Summer School on Vacuum, Electron and Ion Technologies (VEIT2013) 7–11 October 2013, Sozopol, Bulgaria. Bristol : Institute of Physics Publishing [10.1088/1742-6596/514/1/012029].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/48156
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