DETECTION OF PHOTOACOUSTIC WAVES IN LIQUIDS BY FIBER OPTIC INTERFEROMETRY

被引:3
|
作者
HAND, DP
HODGSON, P
CAROLAN, TA
QUAN, KM
MACKENZIE, HA
JONES, JDC
机构
[1] Department of Physics, Heriot-Watt University, Riccarton, Edinburgh
关键词
D O I
10.1016/0030-4018(93)90094-L
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A Michelson-based fibre optic interferometer was used to make absolute measurements of the sub-nanometer liquid surface displacements created by the photoacoustic process. This measurement system is both broad-band and non-contacting. Photoacoustic waves, generated using pulses from a Nd:YAG laser operating at 1.06 mum, were measured in methanol, water, and various concentration mixtures. The wave amplitude demonstrated a quadratic relationship with concentration.
引用
收藏
页码:1 / 6
页数:6
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