Improvement of Pockels effect by crystallization-process control in nonlinear-optical glass-ceramics

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We have fabricated perfectly-surface-crystallized glass-ceramics (PSC-GCs) consisting of polar frenoite-type Sr2TiSi2O8 by different crystallization-process conditions, i.e., isothermal treatment at 880 °C for 72 h and 960 °C for 1 h, and have examined their Pockels effect in this study. The PSC-GCs obtained by the lower-temperature process exhibited the Pockels coefficients, i.e., r13 ∼ 3.0 pm/V and r33 ∼ 2.4 pm/V, and the coefficients exceeded the reported values of the PSC-GCs with Sr2TiSi2O8 phase. The improvement of Pockels effect is attributed to the higher crystal-orientation, which is provided by the lower-temperature condition.

Original languageEnglish
Pages (from-to)16713-16716
Number of pages4
JournalCeramics International
Issue number13
Publication statusPublished - 2019 Sept


  • Fresnoite
  • Glass-ceramics
  • Nonlinear optical crystal
  • Perfect surface crystallization
  • Pockels effect
  • Silicate glass


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