High-sensitivity absorption measurement in water and glass samples using a mode-mismatched pump-probe thermal lens method

被引：83

作者：

Marcano, A ^{[1
]}

Loper, C

Melikechi, N

机构：

[1] Delaware State Univ, Appl Opt Ctr Delaware, Dover, DE 19901 USA

[2] Delaware State Univ, Dept Phys, Dover, DE 19901 USA

来源：

APPLIED PHYSICS LETTERS | 2001年 / 78卷 / 22期

关键词：

D O I：

10.1063/1.1375835

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on a mode-mismatched pump-probe thermal lens experiment performed to measure absorption coefficients as small as 10(-8) cm(-1) in liquid and solid samples. We take advantage of the large axial dimension of the thermal lens by focusing the pump beam in the presence of a collimated probe beam. We measure an absorption coefficient at 533 nm of (6.8 +/-0.1)x10(-4) cm(-1) and of (3 +/-0.3)x10(-6) cm(-1) for distilled water and BK7 optical glass, respectively. (C) 2001 American Institute of Physics.

引用

页码：3415 / 3417

页数：3

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