Photoinduced Refractive Index Variation in the KDP Single Crystals with Incorporated TiO2 Nanoparticles Under CW Laser Excitation

V.Ya. Gayvoronsky; M.A. Kopylovsky; V.O. Yatsyna; A.I. Rostotsky; M.S. Brodyn; I.M. Pritula

doi:10.15407/ujpe57.2.159

Photoinduced Refractive Index Variation in the KDP Single Crystals with Incorporated TiO2 Nanoparticles Under CW Laser Excitation

Authors

V.Ya. Gayvoronsky Institute of Physics, Nat. Acad. of Sci. of Ukraine
M.A. Kopylovsky Institute of Physics, Nat. Acad. of Sci. of Ukraine
V.O. Yatsyna Institute of Physics, Nat. Acad. of Sci. of Ukraine
A.I. Rostotsky Institute of Physics, Nat. Acad. of Sci. of Ukraine
M.S. Brodyn Institute of Physics, Nat. Acad. of Sci. of Ukraine
I.M. Pritula STC "Institute for Single Crystals", Nat. Acad. of Sci. of Ukraine

DOI:

https://doi.org/10.15407/ujpe57.2.159

Keywords:

Abstract

For the first time, the impact of TiO₂ (anatase modification) nanocrystals on the photoinduced optical absorption and refractive index variations in KDP single crystals with the self-action of CW laser radiation at 532 and 1064 nm is studied. It is shown that the incorporation of anatase nanoparticles changes the sign of the refractive nonlinear optical response relatively to that for the KDP crystal matrix at 532 nm due to the resonance overlapping of the energy states of intrinsic defects in the crystal matrix and the surface states of TiO₂ nanoparticles. The sign and the magnitude of the photoinduced variations depend on the concentration of incorporated nanoparticles, crystal growth sector, and irradiation wavelength.

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Published

2012-02-15

How to Cite

Gayvoronsky, V., Kopylovsky, M., Yatsyna, V., Rostotsky, A., Brodyn, M., & Pritula, I. (2012). Photoinduced Refractive Index Variation in the KDP Single Crystals with Incorporated TiO2 Nanoparticles Under CW Laser Excitation. Ukrainian Journal of Physics, 57(2), 159. https://doi.org/10.15407/ujpe57.2.159

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Issue

Vol. 57 No. 2 (2012)

Section

Atoms and molecules

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