ЭБ Коллекция: NPCS Vol.12, no.1 (2009), pp. 1-105 NPCS Vol.12, no.1 (2009), pp. 1-105 https://elib.bsu.by:443/handle/123456789/178344 2026-04-18T08:17:28Z 2026-04-18T08:17:28Z Transformation of Topological Structure of Optical Vortices upon Frequency Non-Degenerate Four-Wave Mixing Gorbach, D. V. Tolstik, Alexei L. Romanov, Oleg G. https://elib.bsu.by:443/handle/123456789/178348 2021-11-12T10:59:43Z 2009-01-01T00:00:00Z Заглавие документа: Transformation of Topological Structure of Optical Vortices upon Frequency Non-Degenerate Four-Wave Mixing Авторы: Gorbach, D. V.; Tolstik, Alexei L.; Romanov, Oleg G. Аннотация: The method for topological structure transformation of optical vortices with simultaneous frequency conversion in a medium with resonant and thermal nonlinearities was theoretically introduced on the basis of holographic principles for optical image processing. Frequency non-degenerate four-wave mixing of singular light beams was realized experimentally when recording and reading of nonlinear dynamic holograms in organic dye solutions. 2009-01-01T00:00:00Z