Sub- and super-Poissonian photon statistics of single-molecule fluorescence blinking
- Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation), E-mail: osadko@sci.lebedev.ru
An analysis of intermittent fluorescence is presented for a single molecule driven by a continuous-wave laser field. The interruptions of fluorescence are caused by transition of the molecule to a triplet state. A method previously developed to calculate photon distribution for continuous-wave fluorescence is applied to analyze photon statistics of fluorescence blinking. The probability w{sub N}(T) of counting N photons over a time interval T is derived for intermittent fluorescence. The photons counted over relatively short intervals are found to have a sub-Poissonian (narrower than Poisson) distribution. The photon distribution over intervals longer than the mean off time has a complicated form with two maxima; i.e., a super-Poissonian (wider than Poisson) distribution is obtained.
- OSTI ID:
- 21072467
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 104, Issue 6; Other Information: DOI: 10.1134/S1063776107060039; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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