Photon statistics and dynamics of fluorescence resonance energy transfer

被引：70

作者：

Berglund, AJ ^{[1
]}

Doherty, AC ^{[1
]}

Mabuchi, H ^{[1
]}

机构：

[1] CALTECH, Norman Bridge Lab Phys 12 33, Pasadena, CA 91125 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.89.068101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report high time-resolution measurements of photon statistics from pairs of dye molecules coupled by fluorescence resonance energy transfer (FRET). In addition to quantum-optical photon antibunching, we observe photon bunching on a time scale of several nanoseconds. We show by numerical simulation that configuration fluctuations in the coupled fluorophore system could account for minor deviations of our data from predictions of basic Forster theory. With further characterization we believe that FRET photon statistics could provide a unique tool for studying DNA mechanics on time scales from 10(-9)-10(-3) s.

引用

页码：1 / 068101

页数：4

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