Abstract
Recent measurements of transmission versus fluence for a methanol-solvated asymmetric pentaazadentate porphyrin-like (APPC) cadmium complex, showed the limitations of current energy-level models in predicting the transmission behavior of organic reverse saturable absorbers at fluences greater than 1 J/cm2. A new model has been developed that incorporates higher-order triplet processes and accurately fits both nanosecond and picosecond transmission-versus-fluence data. This model has provided the first known determination of a higher triplet excited-state absorption cross section and lifetime for an APPC complex and also described a previously unreported feature in the transmission-versus-fluence data. The intersystem crossing rate and the previously neglected higher triplet excited-state absorption cross section are shown to govern the excited-state population dynamics of methanol-solvated most strongly at more-practical device energies.
© 2005 Optical Society of America
Full Article | PDF ArticleMore Like This
Zhenrong Sun, Minghong Tong, Heping Zeng, Liangen Ding, Zugeng Wang, Jie Dai, Guoqing Bian, and Zhizhan Xu
J. Opt. Soc. Am. B 18(10) 1464-1468 (2001)
Richard L. Sutherland, Mark C. Brant, Jim Heinrichs, Joy E. Rogers, Jonathan E. Slagle, Daniel G. McLean, and Paul A. Fleitz
J. Opt. Soc. Am. B 22(9) 1939-1948 (2005)
Fengqi Guo, Wenfang Sun, Duoyuan Wang, Lizheng Zhao, Zhenzhong Lu, and Yuxin Nie
Appl. Opt. 40(9) 1386-1388 (2001)