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

Authors
Marcano, A Loper, C Melikechi, N
Citation
A. Marcano et al., High-sensitivity absorption measurement in water and glass samples using amode-mismatched pump-probe thermal lens method, APPL PHYS L, 78(22), 2001, pp. 3415-3417
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
78
Issue
22
Year of publication
2001
Pages
3415 - 3417
Database
ISI
SICI code
0003-6951(20010528)78:22<3415:HAMIWA>2.0.ZU;2-I
Abstract
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 therm al lens by focusing the pump beam in the presence of a collimated probe bea m. 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 gl ass, respectively. (C) 2001 American Institute of Physics.