Femtosecond spectroscopy of optical excitations in single-walled carbon nanotubes: Evidence for exciton-exciton annihilation

Ying Zhong Ma, Leonas Valkunas, Susan L. Dexheimer, Sergei M. Bachilo, Graham R. Fleming

Research output: Contribution to journalArticlepeer-review

229 Scopus citations

Abstract

Frequency-resolved femtosecond transient absorption spectra and kinetics measured by optical excitation of the second and first electronic transitions of the (8, 3) single-walled carbon nanotube species reveal a unique mutual response between these transitions. Based on the analysis of the spectra, kinetics, and their distinct amplitude dependence on the pump intensity observed at these transitions, we conclude that these observations originate from both the excitonic origin of the spectrum and nonlinear exciton annihilation.

Original languageEnglish
Article number157402
JournalPhysical Review Letters
Volume94
Issue number15
DOIs
StatePublished - Apr 22 2005
Externally publishedYes

Fingerprint

Dive into the research topics of 'Femtosecond spectroscopy of optical excitations in single-walled carbon nanotubes: Evidence for exciton-exciton annihilation'. Together they form a unique fingerprint.

Cite this