Title :
Ultrafast mid-infrared intra-excitonic response of individualized single-walled carbon nanotubes
Author :
Wang, Jigang ; Graham, Matt W. ; Ma, Yingzhong ; Fleming, Graham R. ; Kaindl, Robert A.
Author_Institution :
Dept. of Phys. & Astron., Iowa State Univ., Ames, IA, USA
Abstract :
We report ultrafast mid-infrared studies of individualized semiconducting carbon nanotubes. Transient spectra of (6,5) and (7,5) nanotubes evidence photoinduced absorption around 200 meV, associated with intra-excitonic transitions that reflect quasi-1D exciton correlations and dynamics.
Keywords :
carbon nanotubes; excitons; high-speed optical techniques; infrared spectra; light absorption; individualized semiconducting carbon nanotube; intra-excitonic transition; photo induced absorption; quasi-1D exciton correlation; single walled carbon nanotubes; transient spectra; ultrafast midinfrared intra-excitonic response; ultrafast midinfrared study; Absorption; Carbon nanotubes; Excitons; Laboratories; Optical pumping; Probes; Pulse amplifiers; Resonance; Semiconductor optical amplifiers; Ultrafast optics;
Conference_Titel :
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-890-2
Electronic_ISBN :
978-1-55752-890-2
