Paper
1 May 2014 Holographic transmission gratings stored with high spatial frequency in PVA/AA photopolymers
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Abstract
High spatial frequencies in holographic gratings are difficult to obtain by limitations of the recording material. In this work, the results obtained after storing holographic transmission gratings with a spatial frequency of 2656 lines/mm in a material based on PVA/AA are presented. A chain transfer agent, the 4,4 '-azobis (4-cyanopentanoic acid) (ACPA) has been incorporated in the material composition to improve the spatial resolution. The concentration of the ACPA in the different compositions of the material has been modified in order to find the optimal concentration which gets obtain the maximum diffraction efficiency for high spatial frequencies.
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E. Fernández, R. Fuentes, M. Ortuño, A. Beléndez, and I. Pascual "Holographic transmission gratings stored with high spatial frequency in PVA/AA photopolymers", Proc. SPIE 9131, Optical Modelling and Design III, 91311Z (1 May 2014); https://doi.org/10.1117/12.2052417
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KEYWORDS
Spatial frequencies

Diffraction gratings

Photopolymers

Holography

Diffraction

Spatial resolution

Data storage

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