Dephasing in semiconducting single-walled carbon nanotubes induced by exciton-exciton annihilation

Darius Abramavicius, Ying Zhong Ma, Matthew W. Graham, Leonas Valkunas, Graham R. Fleming

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Three-pulse photon echo peak-shift measurements were performed on semiconducting single-walled carbon nanotubes embedded in a polymer matrix at room temperature. We found a striking dependence of the peak shift on the excitation intensity. Numerical simulations based on an interacting-boson model demonstrate that the intensity dependence originates from a highly nonlinear optical response initiated by exciton-exciton annihilation.

Original languageEnglish
Article number195445
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume79
Issue number19
DOIs
StatePublished - May 1 2009
Externally publishedYes

Funding

FundersFunder number
National Science Foundation1012168

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