Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9577876 | Chemical Physics Letters | 2005 | 4 Pages |
Abstract
Ultrafast time-resolved optical transmission in single-walled carbon nanotubes was measured as a function of pump fluence at a temperature of 200Â K employing degenerate pump-probe experiment. We observed a relaxation dynamics with two components characterized by 0.1 and 1Â ps, respectively. The signal amplitude of the slow component also shows a crossover from negative to positive when the pump fluence decreased. It is suggested that the fast component is related to the intraband relaxation and the slow component is attributed to two-competing processes.
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Authors
Yongbing Long, Li Song, Chunyong Li, Chunyu Zhang, Guo Ping Wang, Sishen Xie, Li Wang, Panming Fu, Zhiguo Zhang,