Surface crystallization and second-order optical non-linearity in Gd 2O3-Bi2O3-B2O 3 glasses

Rie Ihara, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Some ternary Gd2O3-Bi2O3-B 2O3 glasses are prepared, and crystallization behavior and second harmonic intensity are examined to develop new non-linear optical crystallized glasses. The glasses with Gd2O3 contents of 8-14 mol% have large densities of over 6 g/cm3 and large refractive indices of ∼1.9. Transparent surface crystallized glasses consisting of two kinds of crystalline phases with different morphologies, i.e. plate shape and needle shape crystals, are fabricated by heat-treatment at temperatures between glass transition and crystallization temperatures. From second harmonic generation microscope observations, micro-Raman scattering spectra and XRD analyses, plate shape crystals are determined to be non-linear optical Gd xBi1-xBO3 and needle shape crystals are Bi 3B5O12 having no second-order optical non-linearity. Since crystallized glasses consisting of GdxBi 1-xBO3 crystals exhibit relatively strong SHGs, they have a high potential for application to light control devices.

Original languageEnglish
Pages (from-to)138-142
Number of pages5
JournalScience and Technology of Advanced Materials
Issue number2
Publication statusPublished - Mar 2005
Externally publishedYes


  • Bismuth borate glass
  • Crystallization
  • Micro-Raman spectra
  • Rare-earth ions
  • Second harmonic generation

ASJC Scopus subject areas

  • General Materials Science


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