Quantum dynamics of individual molecules studied by photon distribution in blinking fluorescence
Igor S. Osad’ko · Molecular Physics · 2009
Various methods of photon counting in single molecule blinking fluorescence are considered and photon distribution functions, , , and related to these methods are derived. It is shown that each exponential process exp(−λ j t) in quantum dynamics of a single molecule manifests itself in the mathematical expressions for the photon distribution function via Poissonian function PN (−λ j t) with the same rate constant. This relation enables one to avoid N-fold integration in the mathematical expressions for the functions, , , and derived in previous works. Numerical calculations of the functions , , and for blinking fluorescence are carried out. A relation between photon distribution and photo-electric pulse distribution is discussed. Thanks to relation found we can use photo-electric pulse distribution functions for studying photon distribution function and for studying quantum dynamics of single nanoparticle with blinking fluorescence.