Abstract
How to visualize a strain wave front of a progressive acoustic wave by means of conventional Fresnel imaging is shown. The theory suggests that for a Raman-Nath parameter of 0.1 ≤ υ ≤ 1, the stroboscopic illumination automatically produces the strain wave front image in a limited detection zone, because the spatial harmonic images of the original sinusoidal field coming from the interference among the higher-order diffracted light, are appropriately superimposed. The experiment showed good coincidence with theory and its usefulness in observing surface acoustic waves.
© 1985 Optical Society of America
Full Article | PDF ArticleMore Like This
Yoshihiro Ohtsuka and Aris Tanone
J. Opt. Soc. Am. 71(7) 879-883 (1981)
Bradley D. Duncan
Appl. Opt. 39(17) 2888-2895 (2000)
J. Lapierre, D. Phalippou, and S. Lowenthal
Appl. Opt. 14(7) 1549-1555 (1975)