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Title: Laser spectroscopy of sub-micrometre- and micrometre-thick caesium-vapour layers

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)
Authors:
; ; ; ;  [1] ;  [2] ; ;  [3]
  1. Institute of Electronics, Bulgarian Academy of Sciences, boul. Tzarigradsko shosse 72, 1784 Sofia (Bulgaria)
  2. CNISM and Physics Department, University of Siena, via Roma 56, 53100 Siena - Italy (Italy)
  3. Institute for Physical Research, National Academy of Sciences of Armenia, Ashtarak-0203 (Armenia)
Publication Date:
OSTI Identifier:
22303376
Resource Type:
Journal Article
Resource Relation:
Journal Name: Quantum Electronics (Woodbury, N.Y.); Journal Volume: 43; Journal Issue: 9; Other Information: Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMS; COLLISIONS; FLUORESCENCE; LASER RADIATION; LASER SPECTROSCOPY; LAYERS; METAL VAPOR LASERS; REFLECTION; RESOLUTION; RESONANCE; SPECTRA; THICKNESS