Destructive Interference in Coherent Backscattering of Light by an Ensemble of Cold Atoms
- St. Petersburg State Technical University, St. Petersburg, 195251 (Russian Federation)
- Department of Physics, Old Dominion University, Norfolk, VA 23529 (United States)
The coherent backscattering of light by an ensemble of cold atoms located in a magneto-optical trap is investigated theoretically. The dependence of the gain coefficient on the probe frequency is analyzed in a wide spectral range covering the entire hyperfine structure of the excited state. The calculation is performed for {sup 85}Rb atoms. It is found that destructive interference can be observed at certain frequencies, which results in gain coefficients smaller than unity. The angular distribution of scattered light is investigated for corresponding frequencies and the dependence of the shape of the cone of destructive interference on the size of the atomic cloud and its optical thickness is analyzed.
- OSTI ID:
- 20723077
- Journal Information:
- Optics and Spectroscopy, Journal Name: Optics and Spectroscopy Journal Issue: 3 Vol. 99; ISSN 0030-400X; ISSN OPSUA3
- Country of Publication:
- United States
- Language:
- English
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