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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 19 — Jul. 1, 2010
  • pp: 3652–3660

Photopolymerizable nanocomposites for holographic recording and sensor application

Elsa Leite, Izabela Naydenova, Svetlana Mintova, Louis Leclercq, and Vincent Toal  »View Author Affiliations


Applied Optics, Vol. 49, Issue 19, pp. 3652-3660 (2010)
http://dx.doi.org/10.1364/AO.49.003652


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Abstract

Novel nanocomposites consisting of a water-soluble acrylamide-based photopolymer and colloidal zeolite nanoparticles of zeolite Beta and zeolite A were prepared. The interactions between the photopolymer components and zeolite nanoparticles in the photopolymerizable nanocomposites were characterized for the first time by C13 nuclear magnetic resonance and visible spectroscopy. It was found that the zeolite Beta nanoparticles (up to 5wt. %) behave as a noninert additive, resulting in an effective increase in layer thickness, which causes doubling of the diffraction efficiency of the nanocomposite in comparison to that of the undoped photopolymer. On the other hand, the nanocomposite containing zeolite A nanoparticles showed no evidence of interaction with the polymer matrix, had similar values of diffraction efficiency, and—up to a small addition of nanoparticles (up to 2.5wt. %)—showed slightly higher light-induced refractive index modulation of the grating when compared to the undoped photopolymer. The good optical compatibility between the zeolite nanoparticles and the polymer allows a versatile design of photopolymerizable nanocomposites with different properties by selecting the adequate type of zeolite. The nanocomposite containing zeolite Beta nanoparticles demonstrates selective sensing behavior toward toluene and can be coated in either glass or plastic substrates and exposed directly to the environmental conditions.

© 2010 Optical Society of America

OCIS Codes
(090.7330) Holography : Volume gratings
(160.5335) Materials : Photosensitive materials

ToC Category:
Holography

History
Original Manuscript: February 10, 2010
Revised Manuscript: May 4, 2010
Manuscript Accepted: June 2, 2010
Published: June 24, 2010

Citation
Elsa Leite, Izabela Naydenova, Svetlana Mintova, Louis Leclercq, and Vincent Toal, "Photopolymerizable nanocomposites for holographic recording and sensor application," Appl. Opt. 49, 3652-3660 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-19-3652

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