Open AccessReverse saturable absorption of porphyrin-like complexes
Author(s) -
Bing Zhang,
Zhibo Liu,
Shuqi Chen,
Zhou Wen-Yuan,
Wei-Ping Zang,
Jie Tian,
Dan Luo,
Zhaowu Zhu
Publication year - 2007
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.56.5252
Subject(s) - porphyrin , tetraphenylporphyrin , saturable absorption , absorption (acoustics) , materials science , z scan technique , photochemistry , optics , absorption spectroscopy , limiting , molecular physics , optoelectronics , nonlinear optics , chemistry , laser , wavelength , physics , fiber laser , composite material , mechanical engineering , engineering
We report here the experimental observations on the nature of the reverse saturable absorption over the visible region(450—470 nm) for two novel porphyrin-like complexes and tetraphenylporphyrin using open aperture z-scan. They all exist large reverse saturable absorption between the Soret and Q bands. A theoretical study has been carried out using 5-level models. The two novel samples have better optical limiting than tetraphenylporphyrin.