2004
DOI: 10.1063/1.1756577
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Theoretical analysis and computer simulation of fluorescence lifetime measurements. I. Kinetic regimes and experimental time scales

Abstract: The configuration-controlled regime and the diffusion-controlled regime of conformation-modulated fluorescence emission are systematically studied for Markovian and non-Markovian dynamics of the reaction coordinate. A path integral simulation is used to model fluorescence quenching processes on a semiflexible chain. First-order inhomogeneous cumulant expansion in the configuration-controlled regime defines a lower bound for the survival probability, while the Wilemski-Fixman approximation in the diffusion-cont… Show more

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Cited by 19 publications
(21 citation statements)
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“…This expansion is identical to Eq. ͑10͒ in paper I of this series, 19 and is cited here for completeness. Then we re-sum the expansion, leading to…”
Section: ͑3͒mentioning
confidence: 99%
See 1 more Smart Citation
“…This expansion is identical to Eq. ͑10͒ in paper I of this series, 19 and is cited here for completeness. Then we re-sum the expansion, leading to…”
Section: ͑3͒mentioning
confidence: 99%
“…In paper I of this series, we studied two different regimes of the reaction kinetics modulated by conformational fluctuations and accounted for the effects of the experimental observation window in fluorescence measurements. 19 The stationary reaction process dominates in the configurationcontrolled regime while the diffusion process dominates in the diffusion-controlled regime. A path integral simulation was used to model fluorescence quenching processes on a semiflexible chain.…”
Section: Introductionmentioning
confidence: 99%
“…The phonon motions are orders of magnitude faster than the excitation transfer and remain thermalized during the course of the transfer. In certain limits, the master equations derived for the reduced density matrices may be cast into the form of quantum jump equations [51,[65][66][67] that deal with individual trajectories rather than ensembles. These single molecule simulations can provide additional insights into the course of a photoreaction.…”
Section: E-mail Address: Prezhdo@uwashingtonedu (Ov Prezhdo)mentioning
confidence: 99%
“…[1][2][3][4] Because of its popularity, this resonance energy transfer (FRET) method is referred to as "spectroscopic ruler", or "optical ruler". 5 The rate of excitation energy transfer for conventional resonance energy transfer systems (both donor (D) and acceptor (A) are dye molecules) is given by the well-known Förster expression 6 where the distance exponent, σ, is 6, k rad is the radiative rate of the donor dye molecule in absence of the acceptor molecule, r is the center-to-center distance between the donor and the acceptor and r 0 is the Förster radius.…”
Section: Introductionmentioning
confidence: 99%