1. Fluorescence intensity fluctuations in single-molecule polarization sensitive measurements
- Author
-
Lior Turgeman and Dror Fixler
- Subjects
Physics ,Dipole ,Optics ,business.industry ,Monte Carlo method ,Rotational diffusion ,Fluorescence correlation spectroscopy ,Probability density function ,Single-molecule experiment ,Polarization (waves) ,business ,Molecular physics ,Brownian motion - Abstract
A general framework to include fluctuations in the single molecule fluorescence intensity (FI) signal due to random changes in molecule dipole orientation was introduced at Optics Express (21, 2007). By assuming continuous changes in dipole orientation described by Brownian rotational diffusion, this research derives the probability density function (PDF) equation of FI fluctuations. Solution of the proposed equation for several limiting cases and different correlation times yields the short time behavior of FI fluctuations. Monte Carlo simulations results, in accordance with those found in theory will be presented during our talk.
- Published
- 2012
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