Abstract
Coherent population trapping (CPT) on 87Rb atoms in neon atmosphere has been studied in small-size glass absorption cells under conditions of pumping with narrow-band laser radiation at the D2 line of the main doublet. Parameters of the absorption signal have been measured in 3-mm-diameter cells at buffer gas (Ne) pressures varied within 200–400 Torr, cell temperatures within 65–120°C, and pumping radiation power densities within 30–400 μW/cm2. Optimum values of the buffer gas pressures, cell temperature, and pumping power are determined at which the short-term instability of the resonance line is at minimum. Orientational shifts of the CPT resonance signal in gas-filled cells and small-size cells with antirelaxation coating have been compared.
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Original Russian Text © S.V. Ermak, M.V. Petrenko, V.V. Semenov, 2016, published in Pis’ma v Zhurnal Tekhnicheskoi Fiziki, 2016, Vol. 42, No. 3, pp. 29–37.
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Ermak, S.V., Petrenko, M.V. & Semenov, V.V. Coherent population trapping on 87Rb atoms in small-size absorption cells with buffer gas. Tech. Phys. Lett. 42, 127–130 (2016). https://doi.org/10.1134/S1063785016020061
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DOI: https://doi.org/10.1134/S1063785016020061