Tunable blue radiation with a tuning range of 340-460nm has been generated using aβ-BaB_(2)O_(4) crystal for external frequency doubling of a ns-pulsed Ti:Al_(2)O_(3) laser.By pumping the Ti:sapphire with 94mJ/pulse of energy from the second harmonic of a Q-switched Nd:YAG laser,as much as 5.4mJ/pulse at 390nm with a bandwidth of 0.02nm was obtained.This represents an infrared to blue conversion efficiency of 36%and a total conversion(from 532nm to blue)of 5.7%.
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机译:Structure and properties of epitaxial ferroelectric PbZr_(0.4)Ti_(0.6)O_(3)/PbZr_(0.6)Ti_(0.4)O_(3) superlattices grown on SrTiO_(3) (001) by pulsed laser deposition