The nonlinear optical properties of chlorophyll B dissolved in chloroform have been studied using single-beam z-scan technique with a CW Laser at wavelength λ = 635 nm. It was found that the chlorophyll B has a large 3rd nonlinearity. The nonlinear absorption coefficient β and the nonlinear refractive index n₂ were estimated from fitting of the experimental data, which was found to be proportional to the concentration of samples. The origin of the nonlinearity properties was discussed. Our results have indicated that the chlorophyll B could be promising candidates for application on nonlinear photonic devices.

中文翻译：

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用z扫描技术研究叶绿素B的光学非线性性质

使用单光束z扫描技术和CW激光器在λ= 635 nm波长下研究了溶解在氯仿中的叶绿素B的非线性光学性质。发现叶绿素B具有较大的第三非线性。根据实验数据的拟合估计非线性吸收系数β和非线性折射率n ₂，发现非线性吸收系数β和非线性折射率n ₂与样品浓度成正比。讨论了非线性特性的起源。我们的结果表明，叶绿素B有望成为非线性光子器件应用的有希望的候选者。