Nonlinear optics

Experimental studies of non-linear frequency conversion of the CBVL radiation by β-­BBO, KDP and DKDP crystals. It was obtained 25% conversion efficiency for the both wavelengths of CBVL. Investigations of new materials for non-linear optics have started. The nonlinear properties and the refraction coefficients of several synthesized multi-component glasses were measured. It is found that the nonlinearity of the samples is of negative type in the terms of Z-scan techniques. Unique spectral properties of the newly synthesized TGN glass were found, compared to the Hoya V-10 glass. Quasi-oscillation of second harmonics is observed as a result of defects in the glass causing changes in the matrix symmetry. The research is in the frame of a project “Novel multicomponent glass-like telluride matrixes having variable nonlinear optical properties” funded by NSF (DO 02-305/2008) and is done in joint collaboration with Institute for Laser Science, Chofu, Tokyo, Japan.

Investigations of new materials