Schlieren photography by acousto opticalThe impact [1-5] and is particularly important when the ultra sound,Visualized [6-10] in a Schlieren test is.Coherent laser beam propagation through transparency.Medium in which the ultrasound propagationOf an optical grating diffractionThat is due to spatially vary periodically.Refraction index, which in turn caused the jump obstacles.Therefore, the diffracted light soundwaves in many areas.Order [1-5], since only the order forms to avoid Centre.The light is diffracted from a field command center.Must be eliminated in order to visualize the light diffracted ofsound received?The light is projected on the screen, and can be used.See ultrasound images.However, if there is an inhomogeneity in refractive index.Because it would be affected.Schlieren image visualization, heat will always occur.In other scientific areas using Schlieren photography.For example, [11-16] However, as far as we know.Visualization with sound and sound fromThe heat has not yet been reported.
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