Design of Organic Chromophores for All-Optical Signal Processing Applications
Design of Organic Chromophores for All-Optical Signal Processing Applications
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DOI：
10.1021/cm402893s
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发表时间：
2014-01-14
影响因子：
8.6
通讯作者：
Marder, Seth R.
中科院分区：
文献类型：
--
作者：
Hales, Joel M.;Barlow, Stephen;Marder, Seth R.
有机材料具有许多关键属性，使其适合在全光信号处理应用中开发，包括其光学特性的轻松可调性、强且超快的非线性光学响应以及集成到器件结构中的潜力。从这个角度来看，我们提出了可作为此类材料的活性成分的有机发色团的分子设计指南。使用相对简单的模型，基于近红外光谱区域有前景的微观非线性光学特性，识别出一类候选发色团，即类花青聚次甲基。提出了将这些微观特性转化为具有适合设备应用的宏观特性的材料所面临的挑战，以及克服这些障碍的分子工程方法。
Organic materials possess many key attributes that make them suitable for exploitation in all-optical signal processing applications including facile tunability of their optical properties, strong and ultrafast nonlinear optical response, and potential for integration into device structures. In this perspective, we present molecular design guidelines for organic chromophores that could serve as the active constituents for such materials. Using a relatively simple model, a candidate class of chromophores, namely cyanine-like polymethines, is identified based on promising microscopic nonlinear optical properties in the near-IR spectral region. The challenges associated with translating these microscopic properties into materials with macroscopic properties suitable for device applications are presented along with molecular engineering approaches for overcoming these hurdles.