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Proceedings Paper

Two-stage holographic photopolymers with high dynamic range
Author(s): Marvin D. Alim; David J. Glugla; Sudheendran Mavila; Chen Wang; Philip D. Nystrom; Amy C. Sullivan; Robert R. McLeod; Christopher N. Bowman
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Paper Abstract

Two-stage holographic photopolymers capable of high refractive index modulation (Δn) on the order of 10–2 enable the fabrication of a myriad of optical elements. While there are commercial products available that meet these requirements, researchers often want the flexibility to customize both the form factor of the samples as well as the mechanical and chemical properties for their specific applications. We present a novel high refractive index acrylate writing monomer in a low refractive index urethane matrix as a model material for customization for optical applications. We discuss the achievable Δn of this custom monomer, 1,3-bis(phenylthio)-2-propyl acrylate (BPTPA) in the urethane matrix as a function of solubility, along with a comparison to a commercially available high refractive index monomer, 2,4,6- tribromophenyl acrylate. Formulations with BPTPA exhibit a peak-to-mean Δn ≈ 0.029 in transmission holograms without any obvious deficiencies in transparency, color, or scatter. This writing monomer and the synthetic processes present a promising platform for the fabrication of high-performance holographic photopolymers for a wide range of research applications.

Paper Details

Date Published: 23 April 2019
PDF: 5 pages
Proc. SPIE 11030, Holography: Advances and Modern Trends VI, 110300D (23 April 2019); doi: 10.1117/12.2522148
Show Author Affiliations
Marvin D. Alim, Univ. of Colorado Boulder (United States)
David J. Glugla, Univ. of Colorado Boulder (United States)
Sudheendran Mavila, Univ. of Colorado Boulder (United States)
Chen Wang, Univ. of Colorado Boulder (United States)
Philip D. Nystrom, Univ. of Colorado Boulder (United States)
Amy C. Sullivan, Univ. of Colorado Boulder (United States)
Robert R. McLeod, Univ. of Colorado Boulder (United States)
Christopher N. Bowman, Univ. of Colorado Boulder (United States)

Published in SPIE Proceedings Vol. 11030:
Holography: Advances and Modern Trends VI
Antonio Fimia; Miroslav Hrabovský; John T. Sheridan, Editor(s)

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