Sub-Poissonian Statistics of Fluorescence from a Single Atom Driven by a Continuous Wave Laser Field
- Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 (Russian Federation)
Statistics of fluorescence photons emitted by a single two-level atom interacting with a continuous wave laser field are analyzed. The photon-counting distribution is calculated for the so-called intermediate fluorescence photons, i.e., those counted during the time interval between instants at which photons are emitted. The result is a sub-Poissonian (narrower than Poisson) distribution, which agrees with experimental observations. This intermediate-photon distribution is used to calculate the average number of fluorescence photons, the second factorial moment of the photon-counting distribution, and Mandel's Q parameter commonly used to evaluate the deviation of photon statistics from the Poisson distribution. The theoretical expressions obtained for moments of the intermediate-photon distribution are different from well-known Mandel's formulas.
- OSTI ID:
- 20702538
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 101, Issue 1; Other Information: Translated from Zhurnal Ehksperimental'noj i Teoreticheskoj Fiziki, ISSN 0044-4510, 128, 77-87 (No. 1, 2005); DOI: 10.1134/1.2010662; (c) 2005 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); TN:; ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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