Improved Temporal Stability of the Second-Order Nonlinear Optical Effect in a Sol-Gel Matrix Bearing an Active Chromophore

Dong Hoon Choi, Ji Hye Park, Tae Hyung Rhee, Nakjoong Kim, Sin Doo Lee

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A second-order nonlinear optical (NLO) chromophore (disperse red 1) was reacted with (3,isocyanatopropyl)triethoxysilane to form a functionalized silicon alkoxide precursor (SGDR1). To improve the temporal stability of the second-order NLO effect, we employed a thermal cross-link between the organic side groups themselves. (3-Glycidoxypropyl)-trimethoxysilane was mixed with SGDR1 in tetrahydrofuran (SGDR1/GPTS). We compared the témporal stability of the poled samples with SGDR1 and SGDR1/GPTS. We investigated second-order NLO properties of sol-gel films by virtue of second harmonic generation (SHG) and linear electrooptic (E/O) coefficient measurements for the purpose. We achieved much improvement in the temporal stability of second-order NLO effect at high temperature with the heterogeneous films.

Original languageEnglish
Pages (from-to)705-709
Number of pages5
JournalChemistry of Materials
Volume10
Issue number3
Publication statusPublished - 1998 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Materials Chemistry

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