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Proceedings Paper

Efficient and stable holographic gratings stored in an environmentally friendly photopolymer
Author(s): Marta Morales-Vidal; Manuel G. Ramírez; Daniel Sirvent; Francisco J. Martínez-Guardiola; Mariela L. Álvarez; Inmaculada Pascual
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Paper Abstract

Holographic gratings stored in low-toxicity photopolymer, Biophotopol, have been analyzed to achieve stable and efficient holograms. A curing process allows the hologram stabilization, but at the same time, it could produce a diffraction efficiency (DE) reduction. Here, a detailed low-cost LED curing protocol is shown to stabilize over time 1205 l/mm transmission holograms, and at the same time, a 33% DE increment (with respect non-curing holograms) have been demonstrated. Finally, to obtain a better understanding of DE change, a theoretical fit of our experimental result, based on Kogelnik’s coupled wave theory was carried out and discussed.

Paper Details

Date Published: 3 October 2019
PDF: 4 pages
Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112072J (3 October 2019); doi: 10.1117/12.2530574
Show Author Affiliations
Marta Morales-Vidal, Univ. de Alicante (Spain)
Manuel G. Ramírez, Univ. de Alicante (Spain)
Daniel Sirvent, Univ. de Alicante (Spain)
Francisco J. Martínez-Guardiola, Univ. de Alicante (Spain)
Mariela L. Álvarez, Univ. de Alicante (Spain)
Inmaculada Pascual, Univ. de Alicante (Spain)

Published in SPIE Proceedings Vol. 11207:
Fourth International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. M. Martins Costa, Editor(s)

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