Fabrication of Polarization Gratings on the Sol-gel Film Bearing Silylated Chalcone and Disperse red 1

Dong Hoon Choi, Young Ha Kwon

Research output: Contribution to journalArticle


We report the diffraction behavior of the functionalized sol-gel film composed of two different silanes. One silane (SGDR1) contains disperse red 1 (DR1) that is composed of an azobenzene unit. The other silane (SGCHC) bears a chalcone derivative that is photocrosslinkable under UV irradiation. Two-beam coupling method was employed for fabricating the diffraction gratings. The dynamics of formation and erasure of the gratings was studied in term of the variation of the diffraction efficiency. The decaying behavior of the polarization efficiency was also observed after turning off the two pump beams. For complete erasure of the diffraction gratings, we irradiated the linearly polarized single beam. During two-beam coupling, we irradiated UV light on the film surface. The effects of the photocrosslink between the double bonds in chalcone units on the value and dynamic properties of diffraction efficiency are mainly studied in this work.

Original languageEnglish
Pages (from-to)171-178
Number of pages8
JournalKorea Polymer Journal
Issue number3
Publication statusPublished - 2001 Dec 1
Externally publishedYes


ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Polymers and Plastics

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