Author/Authors :
Zhan، نويسنده , , Chuanlang and Li، نويسنده , , Dehua and Zhang، نويسنده , , Deqing and Li، نويسنده , , Yunjing and Wang، نويسنده , , Duoyuan and Wang، نويسنده , , Tongxian and Lu، نويسنده , , Zhenzhong and Zhao، نويسنده , , Lizeng and Nie، نويسنده , , Yuxin and Zhu، نويسنده , , Daoben، نويسنده ,
Abstract :
Three-photon absorption (3PA) and subsequently induced optical limiting behavior of several stilbazolium derivatives were investigated by using a mode-locked/Q-switched Nd:YAG pulse with a duration of 35 ps and a repetition of 10 Hz at 1064 nm. The measured molecular 3PA cross-sections are in the order 10−78–10−76 cm6 s2 at the intensity levels of 0–55 GW/cm2. It is observed that the 3PA cross-section as well as the optical limiting effect can be enhanced by increasing strength of electron-acceptor units of stilbazolium derivatives.
