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Unraveling the Two-Photon and Excited-State Absorptions of Aza-BODIPY Dyes for Optical Power Limiting in the SWIR Band
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2019-09-17 , DOI: 10.1021/acs.jpcc.9b08376 Simon Pascal 1 , Quentin Bellier 1 , Sylvain David 1 , Pierre-Antoine Bouit 1 , San-Hui Chi 2 , Nikolay S. Makarov 2 , Boris Le Guennic 3 , Siwar Chibani 4 , Gérard Berginc 5, 6 , Patrick Feneyrou 5, 6 , Denis Jacquemin 4 , Joseph W. Perry 2 , Olivier Maury 1 , Chantal Andraud 1
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2019-09-17 , DOI: 10.1021/acs.jpcc.9b08376 Simon Pascal 1 , Quentin Bellier 1 , Sylvain David 1 , Pierre-Antoine Bouit 1 , San-Hui Chi 2 , Nikolay S. Makarov 2 , Boris Le Guennic 3 , Siwar Chibani 4 , Gérard Berginc 5, 6 , Patrick Feneyrou 5, 6 , Denis Jacquemin 4 , Joseph W. Perry 2 , Olivier Maury 1 , Chantal Andraud 1
Affiliation
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We describe the linear and nonlinear optical properties of substituted aza-boron-dipyrromethene (aza-BODIPY) dyes with a focus on the impact of the spatial position and electronic nature of the substituents. The experimental findings are rationalized through time-dependent density functional theory calculations, pointing out the crucial importance of intramolecular charge transfer to achieve strong two-photon absorption in the near-infrared, with measured cross sections up to 3300 GM at ca. 1200 nm and 1110 GM at telecommunication wavelengths (1500 nm). The evaluation of the optical power-limiting behavior of the series highlights that a [2 + 1] process, i.e., two-photon absorption, followed by excited-state absorption, was necessary for high optical power-limiting efficiencies. Tetra-functionalized aza-BODIPY, featuring an optimized overlap between two-photon absorption and excited-state absorption in the 1200–1600 nm range, is an ideal platform to obtain efficient broad-range optical limiter.
中文翻译：
揭示Aza-BODIPY染料的双光子和激发态吸收用于SWIR波段的光功率限制
我们描述取代的氮杂硼-双-二吡咯亚甲基（氮杂-BODIPY）染料的线性和非线性光学性质，重点是取代基的空间位置和电子性质的影响。通过基于时间的密度泛函理论计算合理化了实验结果，指出了分子内电荷转移对于在近红外下实现强双光子吸收具有至关重要的重要性，在2004年，测量的横截面高达3300 GM。在电信波长（1500 nm）下为1200 nm和1110 GM。对该系列的光功率限制行为的评估凸显了[2 +1]过程，即双光子吸收，然后是激发态吸收，是高光功率限制效率所必需的。四官能的aza-BODIPY，
更新日期：2019-09-18
中文翻译：
揭示Aza-BODIPY染料的双光子和激发态吸收用于SWIR波段的光功率限制
我们描述取代的氮杂硼-双-二吡咯亚甲基（氮杂-BODIPY）染料的线性和非线性光学性质，重点是取代基的空间位置和电子性质的影响。通过基于时间的密度泛函理论计算合理化了实验结果，指出了分子内电荷转移对于在近红外下实现强双光子吸收具有至关重要的重要性，在2004年，测量的横截面高达3300 GM。在电信波长（1500 nm）下为1200 nm和1110 GM。对该系列的光功率限制行为的评估凸显了[2 +1]过程，即双光子吸收，然后是激发态吸收，是高光功率限制效率所必需的。四官能的aza-BODIPY，
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