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<p>A Schiff base (LS2) compound is synthesized via a reaction of a hot ethanolic solution of (3-ethoxy salcyaldehyde) and a hot ethanolic solution of amine(methyl-4-amino benzoate). The LS2 compound is characterized via <sup>1</sup>H and <sup>13</sup>C NMR spectra, Mass spectrum, and FT-IR spectrum. We observed multiple diffraction patterns of a cw 473&#xa0;nm laser beam from the LS2 compound caused by spatial self-phase modulation (SSPM). The nonlinear refractive index (NLRI) of the LS2 compound is estimated at the high-power input of the laser beam and found equals to 5.387 × 10<sup>–7</sup> cm<sup>2</sup>/W. The Z-scan techniques are used to estimate the NLRI and found equals to 0.12 × 10<sup>–7</sup> cm<sup>2</sup>/W. The all-optical switching (AOS) effect can be seen when 473&#xa0;nm is used as the controlling beam and 532&#xa0;nm is used as the controlled beam.</p>

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Study of DFT, Synthesis, and Nonlinear Optical Properties of a Schiff Base Compound

  • 期刊论文

  • 发表日期：

    2025年3月8日

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  • Ghufran A. Mirdan,
  • Qusay M. A. Hassan,
  • Mouayed Y. Kadhum,
  • C. A. Emshary,
  • Kawkab Ali Hussein,
  • H. A. Sultan,
  • Sadiq M. H. Ismael,
  • Hasanain A. Abdullmajed

摘要

A Schiff base (LS2) compound is synthesized via a reaction of a hot ethanolic solution of (3-ethoxy salcyaldehyde) and a hot ethanolic solution of amine(methyl-4-amino benzoate). The LS2 compound is characterized via 1H and 13C NMR spectra, Mass spectrum, and FT-IR spectrum. We observed multiple diffraction patterns of a cw 473 nm laser beam from the LS2 compound caused by spatial self-phase modulation (SSPM). The nonlinear refractive index (NLRI) of the LS2 compound is estimated at the high-power input of the laser beam and found equals to 5.387 × 10–7 cm2/W. The Z-scan techniques are used to estimate the NLRI and found equals to 0.12 × 10–7 cm2/W. The all-optical switching (AOS) effect can be seen when 473 nm is used as the controlling beam and 532 nm is used as the controlled beam.