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Zurich Instruments AG - Boost Your Optics 1-24 LB
Photonics Dictionary

acousto-optic tunable filter

A bulk crystalline optic which permits the propagation of light through a volume of index altered material. The variation in refractive index along the material volume is due to a piezoelectric transducer with acoustic absorber. The index grating produced by the piezoelectric transducer permits the diffraction of a transmitted beam with ordinary and extraordinary components.
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