Optical properties of photopolymerizable nanocomposites containing nanosized molecular sieves

I. Naydenova, E. Leite, T. Z. Babeva, N. Pandey, T. Baron, T. Yovcheva, S. Sainov, S. Martin, S. Mintova, V. Toal

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Acrylamide-based photopolymerizable nanocomposites containing three types of nanosized crystals with controlled microporosity, Silicalite-1 (MFI-structure), AlPO-18 (AEI-structure) and Beta (BEA-structure) are studied. The influence of the porous nanoparticles on the average refractive index, optical scattering and holographic recording properties of the nanocomposite are characterized. The redistribution of nanoparticles as a result of the holographic recording in the layers is investigated by Raman spectroscopy. It is observed that in all three nanocomposites the nanoparticles are redistributed according to the illuminating light pattern. This redistribution improves the refractive index modulation only in the case of the MFI nanoparticles, while no improvement is observed in AEI and BEA doped layers. The results can be explained by the hydrophobic/hydrophilic nature of the nanoparticles and their interactions, or absence of interactions, with the host photopolymer.

Original languageEnglish
Article number044019
JournalJournal of Optics
Volume13
Issue number4
DOIs
Publication statusPublished - Apr 2011

Keywords

  • holographic gratings
  • molecular sieves
  • optical patterning
  • optical properties of nanocomposites
  • photopolymerisable nanocomposites
  • photopolymers
  • zeolite nanoparticles

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