6S1/2-6P1/2 transition of Cs atoms in cubic and hexagonal solid ⁴He

Hofer, Adrian; Moroshkin, Peter; Ulzega, Simone; Nettels, Daniel; Müller-Siebert, Reinhard; Weis, Antoine

doi:10.1103/PhysRevA.76.022502

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Journal article

6S_1/2-6P_1/2 transition of Cs atoms in cubic and hexagonal solid ⁴He

Hofer, Adrian Department of Physics, University of Fribourg, Switzerland
Moroshkin, Peter Department of Physics, University of Fribourg, Switzerland
Ulzega, Simone Department of Physics, University of Fribourg, Switzerland
Nettels, Daniel Department of Physics, University of Fribourg, Switzerland
Müller-Siebert, Reinhard Department of Physics, University of Fribourg, Switzerland
Weis, Antoine Department of Physics, University of Fribourg, Switzerland

08.08.2007

Published in:

Physical Review A. - 2007, vol. 76, no. 2, p. 022502

English We present a systematic experimental study of the absorption and fluorescence spectra of the 6S_1/2-6P_1/2 transition in Cs atoms isolated in solid ⁴He matrices. The bubble model developed earlier for alkali-metal atoms in liquid He is revised and applied to the present system. The analysis of the dependencies of absorption and fluorescence wavelengths on He pressure in liquid and solid He (cubic and hexagonal) environments leads us to modify the bubble model by taking the elastic deformation of solid He by the atomic bubble into account.

Faculty

Faculté des sciences et de médecine

Department

Département de Physique

Language