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Large irradiance limiting induced by three-photon absorption of a symmetrical fluorene-based molecule

โœ Scribed by Liu, Junhui; Mao, Yanli; Gu, Yuzong; Huang, Mingju; Zhang, Weifeng; Guo, Lijun; Ma, Wenbo

Book ID
115408984
Publisher
Optical Society of America
Year
2008
Tongue
English
Weight
138 KB
Volume
16
Category
Article
ISSN
1094-4087

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Large three-photon absorption and intram
Large three-photon absorption and intramolecular charge transfer of the bis-donor fluorene-based molecules
โœ Wenbo Ma; Yiqun Wu; Junhe Han; Donghong Gu; Fuxi Gan ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 165 KB

Three-photon absorption (3PA) of two fluorene-based molecules with D-p-D structural motifs (abbreviated as BPAF and BCZF) has been determined by using a Q-switched Nd: YAG laser pumped with 38 ps pulses at 1064 nm in DMF. The measured 3PA cross-sections are 222 and 140!10 K78 cm 6 s 2 for BPAF and B