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<p>The patterns of diffraction and mixing of light waves on a phase reflection holographic grating formed in a cubic photorefractive crystal of (001)-cut have been studied. The mechanism of restoration and amplification of an object light wave during counter-propagating two-wave mixing in crystals of 23 and symmetry classes has been analyzed. The conditions of a holographic experiment in which the highest values of the reflection-hologram diffraction efficiency and the object-wave relative intensity were achieved were considered. It was shown that the conditions for achieving the highest object-wave intensity in crystals of symmetry classes 23 and <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="10812_2025_1853_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="31" /> </InlineMediaObject> <EquationSource Format="TEX">\(\overline{4}3\text{m }\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mover> <mn>4</mn> <mo>¯</mo> </mover> <mn>3</mn> <mtext>m</mtext> <mspace width="0.333333em" /> </mrow> </math></EquationSource> </InlineEquation> differ significantly, which was due to the influence of natural optical activity inherent in non-centrosymmetric crystals.</p>

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Diffraction and Mixing of Light Waves on a Reflection Holographic Grating in a Cubic Photorefractive Crystal

  • 期刊论文

  • 发表日期：

    2025年1月20日

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  • V. N. Naunyka

摘要

The patterns of diffraction and mixing of light waves on a phase reflection holographic grating formed in a cubic photorefractive crystal of (001)-cut have been studied. The mechanism of restoration and amplification of an object light wave during counter-propagating two-wave mixing in crystals of 23 and symmetry classes has been analyzed. The conditions of a holographic experiment in which the highest values of the reflection-hologram diffraction efficiency and the object-wave relative intensity were achieved were considered. It was shown that the conditions for achieving the highest object-wave intensity in crystals of symmetry classes 23 and \(\overline{4}3\text{m }\) 4 ¯ 3 m differ significantly, which was due to the influence of natural optical activity inherent in non-centrosymmetric crystals.