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This paper investigates picosecond blue-light induced infrared absorption in bulk ferroelectric nonlinear crystals KTiOPO4 (KTP), RbTiOPO4 (RTP), congruent MgO:LiNbO3 (MgO:CLN), KNbO3 as well as recently developed Rb:KTP, Ce:KTP, stoichiometric LiTaO3 (SLT), MgO:SLT and stoichiometric MgO:LiNbO3, (MgO:SLN). These ferroelectrics are characterized by high nonlinearities and have been proven suitable...
Transmittance and damage threshold in cerium-doped KTP were measured with dependence on cerium concentration. These optical properties were remarkably improved by cerium doping and conversion efficiency in second harmonic generation was reached to 70%.
1-ms wavelength-switching in a mid-infrared range was achieved by difference-frequency mixing in an In-doped AgGaS/sub 2/ crystal. Tuning range was shifted to a longer wavelength region maintaining noncritical phase-matching with increase of indium concentration.
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