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Formation of LiNbO3 crystals at the surface of TeO2 -based glass by YAG laser-induced crystallization
- Source :
-
Solid State Communications . Aug2007, Vol. 143 Issue 6/7, p280-284. 5p. - Publication Year :
- 2007
-
Abstract
- Abstract: Lithium niobate LiNbO3 crystals were formed at the surface of CuO (1 mol%)-doped 25Li2O–25Nb2O5–50TeO2 glass (mol%) by heat-assisted (150 ∘C) continuous-wave Nd:YAG laser irradiations with a wavelength of λ=1064 nm. Nd:YAG laser energies absorbed by Cu2+ ions (d–d transitions) were converted to the lattice vibrations of surrounding Cu2+ ions (nonradiative relaxations), giving the increase in the temperature of the laser irradiated local region. The formation of LiNbO3 crystals was confirmed from micro-Raman scattering spectra. For the line patterned by a laser scanning with a power of 0.59 W and a speed of 6 μm/s, the possibility of a -axis orientation of LiNbO3 crystals along the laser scanning direction was proposed. The present study demonstrates that the combination of Cu2+ and Nd:YAG laser with λ=1064 nm, i.e. transition metal atom heat processing, is effective in inducting LiNbO3 crystals in TeO2-based glasses. [Copyright &y& Elsevier]
- Subjects :
- *CRYSTALS
*LITHIUM niobate
*LASERS
*COPPER ions
Subjects
Details
- Language :
- English
- ISSN :
- 00381098
- Volume :
- 143
- Issue :
- 6/7
- Database :
- Academic Search Index
- Journal :
- Solid State Communications
- Publication Type :
- Academic Journal
- Accession number :
- 25943192
- Full Text :
- https://doi.org/10.1016/j.ssc.2007.06.002