Detection of photoacoustic waves in liquids by fibre optic interferometry

D. P. Hand, P. Hodgson, Tom Carolan, K. M. Quan, H. A. Mackenzie, J. D C Jones

Research output: Contribution to journalArticlepeer-review

Abstract

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 µm, were measured in methanol, water, and various concentration mixtures. The wave amplitude demonstrated a quadratic relationship with concentration. © 1993.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalOptics Communications
Volume104
Issue number1-3
Publication statusPublished - 15 Dec 1993

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