4 May 2018 Spectral analysis of volume holograms in materials with diffusion-based formation mechanisms by means of Coupled wave theory and Kramers-Kronig relations
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Abstract
The article is devoted to the spectral analysis of volume holograms recorded in materials with diffusion-based formation mechanisms. Two media of different nature were examined: polymer material with photosensitive macromolecules (PQ-PMMA) and additively colored solid-state crystal (CaF2). Differential spectra of holograms optical parameters were determined by means of two approaches: numerical approximation of both spectral and angular hologram response (selectivity hypercontour) by Coupled wave theory and processing hologram spectra by Kramers-Kronig dispersion relations. The operation principles, experimental performance, determination results, advantages and disadvantages, as well as validity limits were discussed for both the approaches. Kramers- Kronig relations are operable tool in cases where the nature of holograms formation is well studied, whereas hypercontour approach is indispensable for investigation of hologram formation mechanisms.
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Vladimir N. Borisov, Aleksandr E. Angervaks, Alexandr I. Ryskin, Andrey V. Veniaminov, "Spectral analysis of volume holograms in materials with diffusion-based formation mechanisms by means of Coupled wave theory and Kramers-Kronig relations", Proc. SPIE 10672, Nanophotonics VII, 106724N (4 May 2018); doi: 10.1117/12.2311798; https://doi.org/10.1117/12.2311798
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