1 February 1997 Independent acousto-optic separation of the two wavelengths of a polychromatic light beam
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Abstract
A special configuration based on two successive acoustooptic interactions in uniaxial crystals with two noncollinear acoustic waves is presented. It leads to two angularly split wavelengths from a multiline laser beam with independent acousto-optic efficiencies. General expressions of the angular deviation and the spectral bandwidth are derived. Since the application concerns the restitution of colored images, a novel combination of wavelengths using the blue primary at 458 nm is investigated for trichromatic color matching. Numerical computations have been drawn for paratellurite. A practical separator using the slow shear wave in paratellurite is designed, and experimental results for the independent separation of 514- and 458-nm wavelengths of an Ar laser are reported.
Jean-Claude Kastelik, Jean-Claude Kastelik, Marc G. Gazalet, Marc G. Gazalet, F. Haine, F. Haine, Michel Pommeray, Michel Pommeray, } "Independent acousto-optic separation of the two wavelengths of a polychromatic light beam," Optical Engineering 36(2), (1 February 1997). https://doi.org/10.1117/1.601224 . Submission:
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