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The paper presents the peculiarities of the temperature dependence for the second harmonic generation efficiency of focusing laser radiation. It is shown that an asymmetry of the dependence is the result of the vector phase-matching process near the crystal axis.
In the last decade it synthesized a promising nonlinear crystal aluminum-borate lutetium. The paper presents the evaluation of the applicability of the crystal for various applications of nonlinear optical frequency conversion.
The thermo-optic coupling process of second harmonic generation was numerically simulated in ZnGeP2 crystals pumped by a pulsed CO2 laser at the wavelength of 9.6 mu m, under the strong and weak cooling conditions. The conversion efficiencies, temperature distributions were calculated during the evolution of the thermo-optic coupling. The results showed that the thermo-optic coupling was weak in the...
Thermo-optical parameters proved to be very important parameters of crystals for nonlinear optical conversion. These parameters allow defining the temperature bandwidth of phase matching, as well as the temperature tuning characteristics. For lithium triborate (LiB3O5, LBO) crystal, there is a possibility to realize the angular non-critical phase matching for second harmonic generation (SHG) along...
The goal of this work is to build pulse periodic laser for pumping parametric amplifier of signal radiation with wavelength 1054 nm and energy in the pulse 1 nJ up to the values of several tens mkJ
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