Abstract
We have performed the output of tunable UV laser wavelength 367.5-378.2nm, 281.8- 292.3nm, 223.2-230.8nm by P-BaB204(BBO). The sum-frequency generation between R6G dye laser and fundamental wave (W) of Nd-YAG laser by a BBO crystal cut at 38A‚°, The output of continuously tunable over rage 376.5-378.2nm has been obtained. The pulse energy is over 1.3mJ, the conversion efficiency is 10%. The R6G dye laser, which pumped by frequency doubled YAG laser, has been frequency doubled in a BBO crystal cut at 45A‚°, the tunable range of 281.8-292.3nm and about 8mJ pulse energy have been gained, efficiency is 30%, and the sum frequency of the pump laser's FW and the dye laser's SHG enter another BBO crystal cut at 45A‚°, the tunable range 223.2-230.8nm, the pulse energy is over 100PJ, q=10%.
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