Homogeneity and SHG properties of K3Li2-xNb5+xO15+2x single crystals grown by micro-pulling-down technique

Katsuhiro Imai, Minoru Imaeda, Satoshi Uda, Tetsuo Taniuchi, Tsuguo Fukuda

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Homogeneity of potassium lithium niobate single-crystal fibers grown by micro-pulling-down technique is examined via second-harmonic-generation measurement both in axial and radial directions. It is found that fluctuation of phase-matching wavelength along the growth axis is small and independent of growth rate. On the other hand, relatively large variation of phase-matching wavelength is found along the radial direction. The phase-matching wavelength shows its minimum around the center of the section of the fiber and increase toward the periphery. Compositional inhomogeneity and internal strain in the radial direction are investigated in association with variation of phase-matching wavelength. X-ray rocking-curve analysis, absorption measurement and polarized beam transmittance are also reported.

Original languageEnglish
Pages (from-to)79-87
Number of pages9
JournalJournal of Crystal Growth
Volume177
Issue number1-2
DOIs
Publication statusPublished - 1997 May

Keywords

  • Crystal growth
  • Fiber crystal
  • Homogeneity
  • Nonlinear optics
  • Potassium lithium niobate
  • Second harmonic generation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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