Single molecule fluorescence in inhomogeneous environments
Single molecule fluorescence in inhomogeneous environments
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DOI：
10.1063/1.117111
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发表时间：
1996-12-16
影响因子：
4
通讯作者：
Novotny, L
中科院分区：
文献类型：
--
作者：
Novotny, L
用唯象理论研究了非均匀环境中的单分子。该分子位于平面玻璃基板上，并且有限尺寸的三维物体在不同高度处扫描该分子。寿命和量子产率作为对象的横向位置的函数进行计算。分析是基于一个新的领域展开方法使用的绿色函数的分层参考系统作为基函数。研究发现，在物体边缘附近，分子寿命对跃迁偶极子的取向高度敏感。(C)1996年美国物理学会。
A single molecule in an inhomogeneous environment is studied theoretically using phenomenological theory. The molecule is located on a planar glass substrate and a finite sized, three dimensional object is scanned over the molecule at different heights. Lifetime and quantum yield are calculated as a function of the lateral position of the object. The analysis is based on a new field expansion method using Green's functions of a layered reference system as basis functions. It is found that, near the edges of the object, the molecular lifetime is highly sensitive to the orientation of the transition dipole. (C) 1996 American Institute of Physics.