Nonlinear optical phenomena and devices

Dispersion-matched up-conversion of infrared radiation in a beta barium borate crystal

G. C. Bhar, U. Chatterjee, A. M. Rudra, A. K. Chaudhary

Department of Physics, Burdwan University, India

Abstract: A large phase-matched spectral bandwidth of 220 nm with simultaneous angular acceptance reaching 83 mrad was achieved in detection of near-infrared radiation by critically phase-matched up-conversion utilising for the first time the technique of dispersion matching in a beta barium borate crystal and the commonly available Nd :YAG laser radiation as the pump.

PACS: 42.65.Ky, 07.57.Kp, 42.79.Nv

Received: 26.07.1996

 English version: Quantum Electronics, 1997, 27:1, 44–48

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