单羟基卟啉生色团聚合物三阶非线性特性研究

Studies on Third-order Optical Nonlinearities of Hydroxyl-chromophore-containing Polymer of Porphyrin

利用飞秒激光系统在 830nm波长处测量了一种含 5_对羟基苯基_10 ,15 ,2 0_三苯基卟啉 (HTPP)生色团聚合物HTPP_PGMA的三阶非线性光学特性 ,实验结果表明HTPP_PGMA具有较大的三阶非线性极化率 χ( 3) ≈ 2 8×10 - 1 1 esu。认为这是双光子激发的纯电子响应。

The third_order optical nonlinearities of hydroxyl_chromophore_containing polymer of porphrin is measured with femtosecond laser technique.A third_order optical nonlinearities of 2 8×10 -11 esu resulted from two_photo absorption, is obtained.The process is attributed to a pure electronic response.