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Photoacoustic effect in strongly absorbing fluids

  • S. M. Park
  • , M. I. Khan
  • , H. Z. Cheng
  • , G. J. Diebold

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Ultrasonic waves with an exponential temporal profile are produced when a short pulse of radiation is absorbed in an optically thick fluid. Here, one-dimensional frequency and time domain solutions for the pressure are given for Beer's law absorption of radiation in a fluid in contact with a second transparent medium. Experiments are described where short pulses of 532 nm radiation from a Nd:YAG laser are used to generate exponential waves in solutions containing various concentrations of a dye.

Original languageEnglish
Pages (from-to)63-67
Number of pages5
JournalUltrasonics
Volume29
Issue number1
DOIs
Publication statusPublished - Jan 1991

Bibliographical note

Funding Information:
The authors are grateful to both the US Department of Energy, Office of Basic Energy Sciences for support of this work under Grant ER13235 and the US Department of Defense for an equipment grant.

Keywords

  • Beer's law
  • photoacoustic effect
  • radiation absorption

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