G. C. Bhar, P. Kumbhakar, A. K. Chaudhary, “Generation of UV radiation in a lithium tetraborate crystal by walk-off compensated Type I sum-frequency mixing”, Kvantovaya Elektronika, 2002, Volume 32, Number 4,Pages <nobr>341

Nonlinear optical phenomena

Generation of UV radiation in a lithium tetraborate crystal by walk-off compensated Type I sum-frequency mixing

G. C. Bhar^a, P. Kumbhakar^b, A. K. Chaudhary^a

^a Laser Laboratory, Department of Physics, Burdwan University, India
^b Deptartment of Physics, Regional Engineering College, India

Abstract: Ultraviolet radiation is generated in two lithium tetraborate (Li₂B₄O₇ or LB4) crystals by Type I walk-off compensated sum-frequency mixing (SFM) of the commonly available Nd:YAG laser radiation and radiation from a dye laser pumped by the second harmonic of the same YAG laser. In the walk-off compensated configuration, an enhancement in the conversion efficiency by a factor of 3.8 relative to the single pass generation is realised.

PACS: 42.65.Hw, 42.65.Ky, 42.70.Mp

Received: 28.08.2001
Revised: 03.11.2001