Abstract
In recent years short wavelength coherent radiation lying in the blue and UV range has attracted wide attention for a variety of applications, including laser printing, optical data storage, display technology and undersea communication et al. Some relative new type nonlinear optical crystals such as KTiOPO4 (KTP), KTiOAsO4 (KTA), LiB3O5 (LBO), β-BaB2O4 (BBO), KNbO3 et al. have been widely used to main solid state laser (Nd: YAG, Nd:YLF, Ti:Al2O3 et al.), dye laser, excimer laser and diode laser et al. By frequency up conversion (sum frequency mixing) more short wavelength coherent radiation (even short to 190 nm) could be obtained. Using different nonlinear crystals and different technology a wide wavelength range (188 nm–459 nm) can be generated by sum frequency mixing. SFM with different crystals was summary in this paper.
© 1995 IEEE
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