Efficient and stable holographic gratings stored in an environmentally friendly photopolymer

Marta Morales-Vidal; Manuel G. Ramírez; Daniel Sirvent; Francisco J. Martínez-Guardiola; Mariela L. Álvarez; Inmaculada Pascual

doi:10.1117/12.2530574

3 October 2019 Efficient and stable holographic gratings stored in an environmentally friendly photopolymer

Marta Morales-Vidal, Manuel G. Ramírez, Daniel Sirvent, Francisco J. Martínez-Guardiola, Mariela L. Álvarez, Inmaculada Pascual

Author Affiliations +

Proceedings Volume 11207, Fourth International Conference on Applications of Optics and Photonics; 112072J (2019) https://doi.org/10.1117/12.2530574
Event: IV International Conference on Applications of Optics and Photonics (AOP 2019), 2019, Lisbon, Portugal

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.

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Marta Morales-Vidal, Manuel G. Ramírez, Daniel Sirvent, Francisco J. Martínez-Guardiola, Mariela L. Álvarez, and Inmaculada Pascual "Efficient and stable holographic gratings stored in an environmentally friendly photopolymer", Proc. SPIE 11207, Fourth International Conference on Applications of Optics and Photonics, 112072J (3 October 2019); https://doi.org/10.1117/12.2530574

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