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Enhancement of nonlinear optical response and fluorescence spectra of cationic neutral red by anionic surfactant

机译：阴离子表面活性剂增强阳离子中性红的非线性光学响应和荧光光谱

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摘要

Two-photon absorption (TPA) and fluorescence intensity have possibilities for application in photodynamic therapy and photonic devices. The nonlinear optical properties of the cationic neutral red dye (NR) encapsulated in nanodroplets were studied using the Z-scan technique. The nanodroplets were prepared with a mixture of water, oils, and anionic Bis (2-ethylhexyl) sulfosuccinate sodium salt (AOT). The TPA and nonlinear refractive (NLR) index were studied in three different systems; NR in nanodroplets, NR in AOT and water, and NR in a different solvent. The results indicated that the TPA and NLR index spectra of NR depend on the droplet size. The TPA of the NR dye in the nanodroplet is enhanced in comparison to the NR/solvent system. Moreover, the second-order hyper-polarizability and fluorescence activity of the NR are affected by the encapsulation in the nanodroplets.
机译：双光子吸收（TPA）和荧光强度可用于光动力疗法和光子设备。使用Z扫描技术研究了包裹在纳米液滴中的阳离子中性红染料（NR）的非线性光学性质。用水，油和阴离子型双（2-乙基己基）磺基琥珀酸钠盐（AOT）的混合物制备纳米滴。在三种不同的系统中研究了TPA和非线性折射率（NLR）。纳米滴中的NR，AOT和水中的NR，以及其他溶剂中的NR。结果表明，NR的TPA和NLR指数光谱取决于液滴大小。与NR /溶剂体系相比，纳米液滴中NR染料的TPA有所提高。此外，NR的二阶超极化性和荧光活性受纳米液滴封装的影响。

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  • 来源
    《Optical and quantum electronics》 |2018年第1期|24.1-24.17|共17页
  • 作者

    Khadije Vahedi; Soheil Sharifi; Khalil Alizadeh; Othmar Marti; Masoud Amirkhani;

  • 作者单位

    Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran;

    Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran;

    Department of Physics, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran;

    Institut fur Experimentelle Physik, Universitat Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany;

    Institut fur Experimentelle Physik, Universitat Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Photodynamic therapy; Fluorescence; Nanodroplets; Z-scan; Two photon absorption;

    机译：光动力疗法;荧光;纳米液滴;Z扫描两光子吸收;

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