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Nature of the nonlinear second-order optical susceptibility in molecular materials with C 2v molecular symmetry

  • Polymers. Liquid Crystals
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Abstract

The method of second-harmonic generation at the wavelength 1.06 µm is used to study the nonlinear second-order optical susceptibility of polycrystalline molecular materials with C 2v molecular symmetry belonging to the group of 2,6-dibenzadiene substituted cyclohexanes. The magnitude of the second harmonic signal is comparable to or greater than its value for polycrystalline urea and depends on the type of substituent (the stronger the donor properties of the substituent, the stronger the signal). It is shown that in the majority of the compounds investigated the large nonlinear optical polarizability observed is associated with the octupole moment of the molecule.

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References

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Authors and Affiliations

  1. A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia

    N. V. Agrinskaya & V. A. Lukoshkin

  2. Institute of High-Molecular Compounds, Russian Academy of Sciences, 199004, St. Petersburg, Russia

    A. V. Ten’kovtsev & A. V. Yakimanskii

Authors
  1. N. V. Agrinskaya
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  2. V. A. Lukoshkin
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  3. A. V. Ten’kovtsev
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  4. A. V. Yakimanskii
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Additional information

Fiz. Tverd. Tela (St. Petersburg) 39, 1687–1689 (September 1997)

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Agrinskaya, N.V., Lukoshkin, V.A., Ten’kovtsev, A.V. et al. Nature of the nonlinear second-order optical susceptibility in molecular materials with C 2v molecular symmetry. Phys. Solid State 39, 1506–1508 (1997). https://doi.org/10.1134/1.1130108

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  • DOI: https://doi.org/10.1134/1.1130108

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