Abstract

A theoretical study of the effect of a harmonic trapping force on the distribution of the fluorescence photon counts from Brownian particles is reported. The research of by Chen, et al. [Biophys. J. 77, 553 (1999)] is extended. Simulations of the photon-counting histograms indicate that the trapping force parameters can be estimated from changes in the shapes of the histograms, at least for microspheres.

© 2002 Optical Society of America

Trapping forces, force constants, and potential depths for dielectric spheres in the presence of spherical aberrations

Alexander Rohrbach and Ernst H. K. Stelzer
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Optical trapping near resonance absorption

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Backward-enhanced fluorescence from clusters of microspheres and particles of tryptophan

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