Abstract

L-arginine phosphate monohydrate (LAP) is a promising nonlinear organic crystal for higher harmonic generation in place of the conventional KDP. It has a large absorption at 1.06 μm. Deuterated LAP (DLAP) has been synthesized to decrease this absorption. The absorption coefficient was reduced from 0.09 to 0.02 cm -1 Microbes which easily multiply in the growth solution were successfully inhibited by Hadding H 2 O 2 . Damage thresholds of LAP and DLAP crystals are much higher than that of KDP and fused silica. We suggest that DLAP can be used in place of KDP in high power lasers.

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