Title :
Efficient and flexible laser ultrasound generation using spatial light modulators
Author :
Sharples, S.D. ; Clark, M. ; Somekh, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Nottingham Univ., UK
fDate :
8/30/2001 12:00:00 AM
Abstract :
Efficient production of surface acoustic waves using optical distributions controlled by spatial light modulators is demonstrated. The measurements presented used only 40 mW average optical power on the sample surface. It is shown that a spatial light modulator produces light distributions which control the surface acoustic wave generation on the sample surface; this can be used to produce similar light distributions to those formed by computer generated holography
Keywords :
computer-generated holography; photoacoustic effect; spatial light modulators; surface acoustic waves; ultrasonics; 40 mW; 82 MHz; Rayleigh wave distribution; average optical power; computer generated holography; flexible laser ultrasound generation; laser ultrasonics; light distributions; optical distribution control; spatial light modulators; surface acoustic wave generation; surface acoustic waves;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010773
