Osterbaan, A.
, Sias, A.
, Trujillo-Lemon, M.
, Fung, K.
, Killgore, J.
, MCLEOD, R.
and Bowman, C.
(2025),
Multistage Networks for Glassy Holographic Photopolymers, ACS Applied Materials and Interfaces
(Accessed May 10, 2025)
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Multistage Networks for Glassy Holographic Photopolymers
Published
Author(s)
Alexander Osterbaan, Andrew Sias, Marianela Trujillo-Lemon, Kieran Fung, , ROBERT MCLEOD, Christopher Bowman
Abstract
In the writing of holographic photopolymers, the addition of a third stage cure to the typical polyurethane matrix and acrylate writing monomer steps is used here to modify the ultimate thermomechanical properties of the final holographic photopolymer. Inclusion of a thermally latent, low refractive index epoxide homopolymerization increases the Tg from a value of -22 °C during the writing step to a final Tg of 101 °C after the epoxide cure. Critically, the diffraction grating structure is retained with high fidelity, an index contrast of 0.0057, and a diffraction efficiency of 89% achieved in these materials. Ultimately, the 3-stage design and final glassy state promotes thermal and dimensional stability of the holographic material.Citation
ACS Applied Materials and Interfaces
Pub Type
Journals
Keywords
Dual-cure, photopolymer, holography, acrylate, epoxide, multistage network, diffraction, optical grating
Citation
Issues
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Created April 29, 2025, Updated May 9, 2025