1. Laserinduced crystal growth of nonlinear optical Ba3Ti3O6BO32on glass surface.
- Author
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T. Oikawa and T. Honma
- Subjects
- *
CRYSTAL growth , *INDUSTRIAL lasers , *NONLINEAR optics , *COPPER oxide , *CRYSTALLIZATION , *X-ray diffraction - Abstract
Nonlinear optical Ba3Ti3O6BO32crystals were patterned on the surface of CuO 1 moldoped 40BaO40TiO220B2O3glass by irradiations of continuouswave Nd:YAG wavelength: ?1064 nm and Yb:YVO4?1080 nm lasers. Laser energies absorbed by Cu2ions were transferred to the lattice system through a nonradiative relaxation process, consequently heating the glass and inducing local crystallizations. For the lines patterned by Yb:YVO4laser irradiations with a power of 1 W and a scanning speed of 20 ?ms, a caxis orientation of Ba3Ti3O6BO32crystals along the laser scanning direction is proposed from measurements of Xray diffraction analyses, polarized optical photographs, polarized microRaman scattering spectra, and azimuthal dependence of second harmonic generations. The laserinduced crystallization technique is found to be applied successfully for the spatially selective patterning of nonlinear optical Ba3Ti3O6BO32crystals in glass. © 2008 WILEYVCH Verlag GmbH & Co. KGaA, Weinheim [ABSTRACT FROM AUTHOR]
- Published
- 2008
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