Paper
1 April 2020 Study of optical diffraction in Bragg and intermediate regime for a gratings on PTR glass
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Abstract
In present work we perform analysis of the recorded Bragg gratings on the PTR glass. The analysis includes rigorous couple wave theory and Kogelnik’s theory. Rigorous coupled wave analysis of the recorded gratings includes up to 11 waves. This analysis allows us to retrieve the phase and the amplitude of the Fourier coefficients of a 1-D grating. Which in turns allow to reconstruct the profile of the grating inside the glass volume. Reconstructed profiles of the refractive index inside the gratings explained by the photo-thermo-induced crystallization mechanism.
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Sergey Ivanov, Ekaterina Musikhina, and Nikolay Nikonorov "Study of optical diffraction in Bragg and intermediate regime for a gratings on PTR glass", Proc. SPIE 11367, Photosensitive Materials and their Applications, 113670I (1 April 2020); https://doi.org/10.1117/12.2555575
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KEYWORDS
Diffraction gratings

Diffraction

Glasses

Refractive index

Crystals

Modulation

Silver

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