Patterning and morphology of nonlinear optical GdxBi 1-xBO3 crystals in CuO-doped glass by YAG laser irradiation

K. Koshiba, T. Honma, Y. Benino, T. Komatsu

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Dots and lines consisting of nonlinear optical GdxBi 1-xBO3 crystals were patterned on the surface of CuO-doped Gd2O3-Bi2O3-B2O 3 glass by heat-assisted (200 °C) Nd:YAG laser irradiations with a wavelength of λ=1064 nm, where the laser energy absorbed by Cu 2+ is converted to the local heating of the surrounding Cu 2+. The surface morphology and orientation of crystals in the patterned lines were clarified from confocal scanning laser microscope observations and polarized micro-Raman scattering spectra. Crystal lines with periodic bumps (i.e., ladder-shape like lines) were patterned by laser irradiations with a power of 0.79 W and a scanning speed of 60 μm/s, and the orientation of GdxBi1-xBO3 crystals in the lines was proposed. The present study demonstrates that the combination of Cu2+ and continuous wave Nd:YAG laser with λ=1064 nm is effective in inducting crystallization of oxide glasses. The mechanism of laser-induced crystallization in glass has also been discussed.

Original languageEnglish
Pages (from-to)981-986
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume89
Issue number4
DOIs
Publication statusPublished - Dec 1 2007
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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