19008 Acousto-Optical Effects (Ultrasonic Experiment Set 8)

Acousto-Optical Effects (Ultrasonic Experiment Set 8). Identifying interactions between a mechanical wave and light, also known as acousto-optic effects (AOM, acousto-optic modulation) This set was put together for some challenging experiments dealing with the interactions between a mechanical wave and light (the acousto-optic effects: AOM, acousto-optic modulation).The experiments promote knowledge and understanding of the propagation properties of both mechanical and electromagnetic waves. It is shown that the density changes caused by the compression and dilation of an ultrasonic wave cause a change in the refractive index of the medium. The resulting grating causes the diffraction of laser light. In addition, the intensity modulation and the wavelength change of laser light are demonstrated. In various experiments, the diffraction properties of light on standing and traveling ultrasonic waves are investigated and measured. The speed of sound in various liquids is determined by vary