Laser spectroscopy of sub-micrometre- and micrometre-thick caesium-vapour layers
- Institute of Electronics, Bulgarian Academy of Sciences, boul. Tzarigradsko shosse 72, 1784 Sofia (Bulgaria)
- CNISM and Physics Department, University of Siena, via Roma 56, 53100 Siena - Italy (Italy)
- Institute for Physical Research, National Academy of Sciences of Armenia, Ashtarak-0203 (Armenia)
We present high resolution laser spectroscopy of Cs vapours confined in a unique optical cell of sub-micrometric and micrometric thickness, where a strong spatial anisotropy is present for the time of interaction between the atoms and laser radiation. Similarly to the spectra of selective specular reflection, the Doppler-free spectra of absorption and fluorescence are observed, not revealing cross-over resonances that will be useful for frequency stabilisation, provided the cell is cheap and compact. A new resonance in the fluorescence of closed transition is studied, demonstrating its high sensitivity to elastic atom – atom and atom – dielectric surface collisions. The theoretical modelling performed is in agreement with the experimental observations. (laser spectroscopy)
- OSTI ID:
- 22303376
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Vol. 43, Issue 9; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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