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首页> 外文会议>Conference on multiphoton absorption and nonlinear transmission processes: Materials, theory, and applications >Two-dimensional two-photon absorbing chromophores and solvent effects on their cross-sections
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Two-dimensional two-photon absorbing chromophores and solvent effects on their cross-sections

机译：二维双光子吸收发色团和它们的横截面的溶剂效应

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A series of 2-dimensional two-photon absorbing chromophores and their 1 -dimensional analogs were studied. The influence of the solvents on the linear absorption, photoluminescence and two-photon absorption cross-sections were also examined for these chromophores. The stoke's shift increase with increasing solvent polarity, that can be adequately described by Lippert equation. Two-photon absorption cross sections were measured with femtosecond pulses by the two-photon-induced fluorescence technique. It was observed that two-photon cross-sections were also strongly dependent on the solvents, however no simple correlation with solvent polarity was found in this study. Interestingly, a linear relationship was observed in these chromophores between the molar extinction coefficient and the two-photon cross section when plotted in log-log formats. Understanding of the relationship may provide a better insight of the two-photon absorption processes, and potentially will contribute to the design of highly efficient two-photon absorbing chromophores.
机译：研究了一系列二维二光子吸收发色团及其1尺寸类似物。还检查了这些发色团的溶剂对线性吸收，光致发光和双光子吸收横截面的影响。溶剂极性随着脂肪改性极性的增加，斯托克的换档增加。通过双光子诱导的荧光技术用飞秒脉冲测量双光子吸收横截面。观察到两光子横截面也强烈依赖于溶剂，然而在该研究中没有发现与溶剂极性的简单相关。有趣的是，当以日志格式绘制时，在摩尔消光系数和双光子横截面之间观察到线性关系。理解关系可以提供对双光子吸收过程的更好识别，并且可能会有助于设计高效的双光子吸收发色团。

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