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<p>Femtosecond nonlinear optical activity of poled polymer films doped with novel D-π-A1-π-A2 chromophores (D = trisubstituted aniline, π = vinylene, A1 = quinoxalin-2-one, A2 = tricyanofuran; 25 and 30 wt%), exhibiting high thermal stability (T<sub>d</sub> &gt; 200&#xa0;°C) and large solvatochromic shifts (up to 66&#xa0;nm), have been studied by second harmonic generation technique, nonlinear optical coefficients, d<sub>33</sub>, up to 66&#xa0;pm/V have been measured. Increased chromophore loads in polymer materials don’t result in reduction of NLO performance. Film with higher NLO performance retains 85% of the response even after one year when stored at ambient temperature.</p>

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Femtosecond nonlinear optical activity of polymer films doped by dipole quinoxalinone-vinyl-tricyanofuran chromophores with trisubstituted aniline donor

  • 期刊论文

  • 发表日期：

    2026年4月24日

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  • Alexey A. Kalinin,
  • Alexey A. Shustikov,
  • Sirina M. Sharipova,
  • Danil N. Petrov,
  • Alfira A. Valieva,
  • Anastasiya V. Sharipova,
  • Artemiy G. Shmelev,
  • Tatyana A. Vakhonina,
  • Ayrat R. Khamatgalimov,
  • Victor G. Nikiforov,
  • Marina Yu Balakina

摘要

Femtosecond nonlinear optical activity of poled polymer films doped with novel D-π-A1-π-A2 chromophores (D = trisubstituted aniline, π = vinylene, A1 = quinoxalin-2-one, A2 = tricyanofuran; 25 and 30 wt%), exhibiting high thermal stability (Td > 200 °C) and large solvatochromic shifts (up to 66 nm), have been studied by second harmonic generation technique, nonlinear optical coefficients, d33, up to 66 pm/V have been measured. Increased chromophore loads in polymer materials don’t result in reduction of NLO performance. Film with higher NLO performance retains 85% of the response even after one year when stored at ambient temperature.