A RADIAL FINITE-MODEL OF THERMAL LENS SPECTROMETRY AND THE INFLUENCE OF SAMPLE RADIUS UPON THE VALIDITY OF THE RADIAL INFINITE-MODEL

被引：46

作者：

SHEN, J

SNOOK, RD

机构：

[1] Department of Instrumentation and Analytical Science, UMIST, Manchester M60 1QD

来源：

JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期

关键词：

D O I：

10.1063/1.353761

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Conventional thermal lens models unrealistically assume that the sample has an infinite radius. Taking realistic radial sample boundary conditions into account, a cw laser-induced mode-mismatched dual-beam thermal lens model is presented. Comparison of these two kinds of models has been made, which gives the quantitatively necessary and sufficient condition for the validity of the radial-infinite treatment on the sample: The sample radius should be larger than 2.5 times both excitation beam and probe beam radii in the sample.

引用

页码：5286 / 5288

页数：3

共 5 条

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