Abstract
We calculated theoretically the properties of the nonlinear crystal CsLiB6O10 (CLBO) in third-harmonic generation (THG). These are the phase matching angle, the effective nonlinear coefficient, the walk-off angle, the permitted angle, and the permitted wavelength, and we found that CLBO has a small walk-off angle and large permitted parameters, as compared with BBO. The numerical simulation curves of the conversion efficiency were obtained for the case where CLBO was used in THG of a Q-switched Nd:YAG laser with a wavelength of 1064 nm and different pump powers and the optimized efficiency was as high as 22%. All this suggests that the CLBO crystal is more suitable for generating intense higher order harmonic radiation.
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