Visualization of acoustic surface waves in the lithium niobate crystal on a frequency of 17 MHz under thermal expansion of the sample.

Wave length – 0.532 µm, exposure time – 60 ps; sample surface area size – 3.84 by 3.84 mm
Interferograms obtained by means of comparing a hologram of the stall position with a series of holograms recorded consequently after loading. Time of holographing is provided under respective pictures (HH:MM:SS).

No. 1		No. 2		No. 3		No. 4
21:33:16		21:33:36		21:33:54		21:34:32
No. 5		No. 6		No. 7		No. 8
21:34:52		21:35:06		21:35:40		21:36:24