Formation of LiNbO3 crystals at the surface of TeO2 -based glass by YAG laser-induced crystallization

H. Sugita; T. Honma; Y. Benino; T. Komatsu

doi:10.1016/j.ssc.2007.06.002

Formation of LiNbO₃ crystals at the surface of TeO₂ -based glass by YAG laser-induced crystallization

H. Sugita, T. Honma, Y. Benino, T. Komatsu

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Lithium niobate LiNbO₃ crystals were formed at the surface of CuO (1 mol%)-doped 25Li₂O-25Nb₂O₅-50TeO₂ glass (mol%) by heat-assisted (150 ^{{ring operator}}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 c-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.

Original language	English
Pages (from-to)	280-284
Number of pages	5
Journal	Solid State Communications
Volume	143
Issue number	6-7
DOIs	https://doi.org/10.1016/j.ssc.2007.06.002
Publication status	Published - Aug 2007
Externally published	Yes

Keywords

A. LiNbO
B. Laser processing
C. Raman scattering spectrum
D. Phase transitions

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

Access to Document

10.1016/j.ssc.2007.06.002

Cite this

@article{b94ee0cfef3846d9a8476777b9bf6bc3,

title = "Formation of LiNbO3 crystals at the surface of TeO2 -based glass by YAG laser-induced crystallization",

abstract = "Lithium niobate LiNbO3 crystals were formed at the surface of CuO (1 mol%)-doped 25Li2O-25Nb2O5-50TeO2 glass (mol%) by heat-assisted (150 {ring operator}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 c-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.",

keywords = "A. LiNbO, B. Laser processing, C. Raman scattering spectrum, D. Phase transitions",

author = "H. Sugita and T. Honma and Y. Benino and T. Komatsu",

note = "Funding Information: This work was supported from Ministry of Internal Affairs and Communications Strategic Information and Communications R&D Promotion Programmes (SCOPE), Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, Culture and Technology, Japan, and by the 21st Century Centre of Excellence (COE) Programme in Nagaoka University of Technology.",

year = "2007",

month = aug,

doi = "10.1016/j.ssc.2007.06.002",

language = "English",

volume = "143",

pages = "280--284",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Limited",

number = "6-7",

}

TY - JOUR

T1 - Formation of LiNbO3 crystals at the surface of TeO2 -based glass by YAG laser-induced crystallization

AU - Sugita, H.

AU - Honma, T.

AU - Benino, Y.

AU - Komatsu, T.

N1 - Funding Information: This work was supported from Ministry of Internal Affairs and Communications Strategic Information and Communications R&D Promotion Programmes (SCOPE), Grant-in-Aid for Scientific Research from the Ministry of Education, Science, Sports, Culture and Technology, Japan, and by the 21st Century Centre of Excellence (COE) Programme in Nagaoka University of Technology.

PY - 2007/8

Y1 - 2007/8

N2 - Lithium niobate LiNbO3 crystals were formed at the surface of CuO (1 mol%)-doped 25Li2O-25Nb2O5-50TeO2 glass (mol%) by heat-assisted (150 {ring operator}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 c-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.

AB - Lithium niobate LiNbO3 crystals were formed at the surface of CuO (1 mol%)-doped 25Li2O-25Nb2O5-50TeO2 glass (mol%) by heat-assisted (150 {ring operator}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 c-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.

KW - A. LiNbO

KW - B. Laser processing

KW - C. Raman scattering spectrum

KW - D. Phase transitions

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