Efficient generation of mid-infrared radiation by noncritically phase-matched second-harmonic generation is demonstrated in a mixed chalcopyrite crystal, AgGaxIn1−xSe2, and compared with that in an AgGaSe2 crystal. Nonlinear coefficients d36 of AgGaxIn1−xSe2 and AgGaSe2 crystals have also been derived.
© 1995 Optical Society of America
Original Manuscript: April 10, 1995
Published: October 15, 1995
G. C. Bhar, D. V. Satyanarayan, Yu. N. Andreev, P. K. Datta, S. Das, and U. Nundy, "Efficient generation of mid-infrared radiation in an AgGaxIn1−xSe2 crystal," Opt. Lett. 20, 2057-2059 (1995)