Structure property correlations in alcohols through two-photon absorption cross-section measurements
Structure property correlations in alcohols through two-photon absorption cross-section measurements
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DOI：
10.1016/j.cplett.2006.08.127
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发表时间：
2006-10-30
影响因子：
2.8
通讯作者：
Goswami, Debabrata
中科院分区：
文献类型：
--
作者：
Nag, Amit;Singh, Sherdeep;Goswami, Debabrata
纯醇的双光子吸收(TPA)截面是一种飞秒激光可测量的性质，具有有用的结构性质关联式，这些关联式与醇的自相位调制直接相关。结果表明，自相位调制量与分子结构有关。因此，二阶超极化率的实部和虚部是相互关联的。这样的TPA测量证明，通过简单地将单光子吸收光谱的波长加倍来预测双光子吸收性质是不可能的。(C)2006爱思唯尔B.V.保留所有权利。
Two-photon absorption (TPA) cross-sections of neat alcohols are shown to be a femtosecond laser measurable property with useful structure property correlations that are directly correlated to the self-phase modulation of the alcohol in question. The amount of self-phase modulation is shown to be a molecular structure dependent property. The real and the imaginary components of the second-order hyperpolarizability are thus shown to be interrelated. Such TPA measurements prove that it is not possible to predict two-photon absorption properties by simple doubling the wavelengths of one-photon absorption spectra. (c) 2006 Elsevier B.V. All rights reserved.