Small-angle scattering during formation of periodic structures in light-sensitive films subjected to laser radiation |
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Authors: | V. K. Miloslavskiĭ O. V. Tyutyunnik L. A. Ageev |
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Affiliation: | (1) Kharkov State University, Kharkov, 61077, Ukraine |
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Abstract: | Patterns of small-angle scattering that appear in thin AgCl films containing granular silver upon the formation of spontaneous periodic structures by p-polarized and circularly polarized laser beams (He-Ne laser, P=8 mW, λ = 632.8 nm) are studied. It is found that, at angles of incidence exceeding 4° regardless of the type of polarization, the diffraction of the waveguide modes excited by the dominant C gratings from neighboring microgratings with the vectors K ≠ K c dominantly contributes to the small-angle scattering. In the case of circularly polarized light, the pattern of small-angle scattering becomes more complicated as a result of the formation of S ? gratings and related secondary regular gratings. |
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