Stability of second-order nonlinear optical properties in sol-gel matrix bearing silylated chalcone and disperse red 1

Dong Hoon Choi, Ji Hye Park, Ju Hyun Lee, Sin Doo Lee

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We report the syntheses of two triethoxysilanes for thin film fabrication. One silane (SGDR 1) contains disperse red 1 (DR 1) which is a second-order nonlinear optical (NLO) active chromophore. The other silane (SGCHC) bears a chalcone derivative. In order to improve the poor temporal stability of second-order NLO effects in the resulting poled sol-gel film, photo-crosslink was induced between the double bonds in chalcone units after mixing SGDR 1 and SGCHC. Under UV exposure, the photocrosslink was studied with UV-visible absorption and IR vibrational spectroscopy. The decaying behavior of the molecular order parameter (A2) after corona poling was investigated using polarized absorption spectroscopy (PAS). Second-order non-linear optical properties of the sample were studied using second-harmonic generation (SHG) and linear electro-optic (E/O) signal measurement. Poled and UV-cured film of SGDR 1/SGCHC exhibited much better stability than thermally poled sample with respect to the molecular order parameter and linear electro-optic effect.

Original languageEnglish
Pages (from-to)213-221
Number of pages9
JournalThin Solid Films
Volume360
Issue number1-2
DOIs
Publication statusPublished - 2000 Feb 1
Externally publishedYes

Fingerprint

Bearings (structural)
Chalcone
Silanes
Electrooptical effects
silanes
electro-optics
Sol-gels
Optical properties
gels
optical properties
signal measurement
Vibrational spectroscopy
Chromophores
Harmonic generation
matrices
bears
Absorption spectroscopy
coronas
chromophores
Infrared spectroscopy

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Stability of second-order nonlinear optical properties in sol-gel matrix bearing silylated chalcone and disperse red 1. / Choi, Dong Hoon; Park, Ji Hye; Lee, Ju Hyun; Lee, Sin Doo.

In: Thin Solid Films, Vol. 360, No. 1-2, 01.02.2000, p. 213-221.

Research output: Contribution to journalArticle

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