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    <title>ЭБ Коллекция: NPCS Vol.12, no.1 (2009), pp. 1-105</title>
    <link>https://elib.bsu.by:443/handle/123456789/178344</link>
    <description>NPCS Vol.12, no.1 (2009), pp. 1-105</description>
    <pubDate>Sat, 18 Apr 2026 08:17:28 GMT</pubDate>
    <dc:date>2026-04-18T08:17:28Z</dc:date>
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      <title>Transformation of Topological Structure of Optical Vortices upon Frequency Non-Degenerate Four-Wave Mixing</title>
      <link>https://elib.bsu.by:443/handle/123456789/178348</link>
      <description>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.</description>
      <pubDate>Thu, 01 Jan 2009 00:00:00 GMT</pubDate>
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      <dc:date>2009-01-01T00:00:00Z</dc:date>
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