Open AccessThe influence of pulse width on transient thermally induced optical nonlinearities in a Kerr nonlinear medium
Author(s) -
Shuqi Chen,
Zhibo Liu,
Zhou Wen-Yuan,
Tian Jian-Guo Zang Wei-Ping,
Wei-Ping Zang,
Song Feng,
Chunping Zhang
Publication year - 2004
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.53.3577
Subject(s) - transient (computer programming) , pulse (music) , nanosecond , kerr effect , nonlinear system , materials science , thermal , physics , pulse width modulation , nonlinear medium , transient response , steady state (chemistry) , optics , electromagnetic pulse , nonlinear optics , atomic physics , thermodynamics , laser , quantum mechanics , power (physics) , chemistry , electrical engineering , detector , computer science , engineering , operating system
We report the experimental results on the effect of pulse width on transient thermally induced optical nonlinearities in the nanosecond r egime. We have obtained the Z_scan curves of the CS2 solutions of nigrosin e for different pulse widths, and analyzed the co_existence of third_order and transie n t thermally induced optical nonlinearities. The process of changing from transi ent state to steady_state thermal_induced optical nonlinearities was observed. M eanwhile, we have obtained the results of numerical simulation by solving simult aneously acoustic and electromagnetic wave equations, which agree well with the experimental results.