Debye-Sears Effect (Acousto-optics)
The acousto-optical effect, named after the physicists Peter Debye and Francis Sears, enables the velocity of sound in liquids and solids
to be determined very accurately. The effect is based on the periodic change of the refractive index in the medium along the direction
of propagation of the ultrasound. As a result, the ultrasonic wave acts on a parallel beam of light like an optical phase grating with a
grating constant that corresponds to the wavelength of the ultrasound.
00:00 - Intro
00:16 - Experimental Setup
00:58 - How the Debye-Sears Effect Works
01:35 - Experimental Procedure
Debye-Sears effect (PHY11) https://www.gampt.de/en/product/phy11...
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