Abstract
High efficiency frequency quadrupling of Nd:YAG laser radiation was achieved in lithium triborate using a three-stage design. 3.2 mJ was measured at 266 nm corresponding to 28% overall conversion efficiency. Temperature angular tuning was characterized. Preliminary experiments at 10 kHz produced an average power above 1 W in the deep-ultraviolet.
© 2014 Optical Society of America
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