Picosecond acoustic pulse reflection from a metal‐metal interface
作者:
Kathryn A. Svinarich,
W. J. Meng,
G. L. Eesley,
期刊:
Applied Physics Letters
(AIP Available online 1990)
卷期:
Volume 57,
issue 12
页码: 1185-1187
ISSN:0003-6951
年代: 1990
DOI:10.1063/1.103521
出版商: AIP
数据来源: AIP
摘要:
Picosecond duration laser pulses are used to generate ultrashort acoustic pulses in a bilayer metal film. Time‐resolved transient piezoreflectance measurements permit the observation of acoustic reflections from a metal‐metal interface within the film, as well as reflections from the film‐substrate interface. We show that our measurements are well described by an abrupt interface model of acoustic mismatch.
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