Abstract

Refractive indices of AgGaS2 crystal are measured at different temperatures using the classical minimum deviation technique and are fitted in appropriate dispersion relations. The variation of pump laser wavelength for noncritical upconversion of signal at 10.6 μm with the change in crystal temperature has been verified using the above data. Temperature tunable infrared generation by noncritically phase-matched difference-frequency mixing has been predicted from 3 to 18 μm.

© 1983 Optical Society of America

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