Complex acoustic waveforms excited with multiple picosecond transient gratings formed using specially designed phase-only beam-shaping optics

John A. Rogers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

This paper describes a method for using a pulsed laser and specialized low cost beam-shaping optics to launch complex acoustic waveforms with user- definable geometries; diffraction of a continuous wave probe laser from these waveforms reveals their temporal evolution in real time. Methods are introduced for designing and fabricating simple binary phase optics for beam- shaping that is useful for high-frequency measurements on thin films. Experiments on films of platinum on silicon demonstrate the approach.

Original languageEnglish (US)
Pages (from-to)2807-2813
Number of pages7
JournalJournal of the Acoustical Society of America
Volume104
Issue number5
DOIs
StatePublished - Nov 1 1998

ASJC Scopus subject areas

  • Arts and Humanities (miscellaneous)
  • Acoustics and Ultrasonics

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