TITLE

Gouy phase shift of single-cycle picosecond acoustic pulses

AUTHOR(S)
Holme, N. C. R.; Daly, B. C.; Myaing, M. T.; Norris, T. B.
PUB. DATE
July 2003
SOURCE
Applied Physics Letters;7/14/2003, Vol. 83 Issue 2, p392
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ultrafast laser pulses are used to generate single-cycle picosecond acoustic pulses in thin metal films on silicon. For small initial excitation spot sizes, propagation of the acoustic pulses across a 485-μm Si crystal leads to significant diffraction effects. The temporal reshaping of the acoustic wave form due to diffraction is investigated, and we demonstrate that the acoustic far field can be reached.
ACCESSION #
10220394

 

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