Controlling of monomer diffusion in an organic-inorganic hybrid photopolymer film for holographic memory

Eunkyoung Kim, Nam Kim, Changwon Shin, Jiyoung Park, Sangkeun Gil

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Organic-inorganic nanocomposite films were prepared by dispersing an aromatic methacrylic monomer and a photo-initiator in organic-inorganic hybrid sol-gel matrices. The film properties could be controlled by optimizing the content of an organically modified silica precursor (TSPEG) in the sol-gel matrices. The photopolymer film modified with the organic chain (TSPEG) showed high diffraction efficiency (>90%) under an optimized condition. High diffraction efficiency could be ascribed to the fast diffusion and efficient polymerization of monomers under interference light to generate refractive index modulation. The TSPEG modified photopolymer film could be successfully used for holographic memory. Angular selectivity of the film were 0.46 ∼ 0.16 depending on the film thickness in the incident angles between 20° ∼ 70°. A digital holographic image and a real object were recorded successfully in the photopolymer film.

Original languageEnglish
Article number17
Pages (from-to)124-132
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5560
DOIs
Publication statusPublished - 2004
EventPhotorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications X - Denver, CO, United States
Duration: 2004 Aug 22004 Aug 3

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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