A new phase-stable photopolymer with high diffraction efficiency based on modified PMMA

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A new photopolymer satisfying both phase stability and high diffraction efficiency was successfully prepared using modified poly(methyl methacrylate) as a polymer matrix. In this work, we introduced methacrylic acid unit into the poly(methyl methacrylate) in order to enhance the phase stability without sacrificing the refractive index difference between polymer matrix and photopolymerized polymer. By the introduction of hydrophilic acid unit, optical transparency of the photopolymer was greatly enhanced and high diffraction efficiency near 90% could be obtained. There were remarkable differences in optical behavior among the polymer matrices with different concentration of acid unit and they were interpreted in terms of miscibility among polymer matrix, triethanotamine, and photopolymerized polymer. (c) 2005 Elsevier B.V. All rights reserved.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2005-05
Language
English
Article Type
Article
Keywords

FILMS

Citation

OPTICS COMMUNICATIONS, v.249, no.1-3, pp.65 - 71

ISSN
0030-4018
DOI
10.1016/j.optcom.2005.01.003
URI
http://hdl.handle.net/10203/92337
Appears in Collection
CBE-Journal Papers(저널논문)
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