Preferential growth orientation of laser-patterned LiNbO3 crystals in lithium niobium silicate glass

T. Komatsu, K. Koshiba, T. Honma

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Dots and lines consisting of LiNbO3 crystals are patterned on the surface of 1CuO40Li2O32Nb2O528SiO 2 (mole ratio) glass by irradiations of continuous-wave Nd:YAG laser (wavelength: λ=1064 nm), diode laser (λ=795 nm), and Yb:YVO 4 fiber laser (λ=1080 nm), and the feature of laser-patterned LiNbO3 crystal growth is examined from linearly polarized micro-Raman scattering spectrum measurements. LiNbO3 crystals with the c-axis orientation are formed at the edge parts of the surface and cross-section of dots. The growth direction of an LiNbO3 along the laser scanning direction is the c-axis. It is proposed that the profile of the temperature distribution in the laser-irradiated region and its change along laser scanning would be one of the most important conditions for the patterning of crystals with a preferential growth orientation. Laser irradiation giving a narrow width is also proposed to be one of the important factors for the patterning of LiNbO3 crystal lines with homogeneous surface morphologies.

Original languageEnglish
Pages (from-to)411-418
Number of pages8
JournalJournal of Solid State Chemistry
Volume184
Issue number2
DOIs
Publication statusPublished - 2011 Feb
Externally publishedYes

Keywords

  • Glass
  • Laser pattering
  • LiNbO
  • Micro-Raman spectrum
  • Preferential orientation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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