Excitation of high frequency surface acoustic waves by phase velocity scanning of a laser interference fringe

Hideo Nishino, Yusuke Tsukahara, Yoshihiko Nagata, Toshio Koda, Kazushi Yamanaka

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)

Abstract

We present a novel method for generating 100 MHz band surface acoustic wave (SAW) by using a scanning interference fringe at the phase velocity of the SAW. The scanning interference fringe is obtained by intersecting two laser beams with different frequencies, and used as a thermoelastic source. The principle of this method is described, and experimentally demonstrated in the 110 MHz Rayleigh waves on an aluminum specimen generated by a long-pulse (140 ns) Q-switched Nd:YAG laser.

Original languageEnglish
Pages (from-to)2036-2038
Number of pages3
JournalApplied Physics Letters
Volume62
Issue number17
DOIs
Publication statusPublished - 1993

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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