Exciton-Plasmon Coupling in Carbon Nanotubes

Details Exciton-Plasmon Coupling in Carbon Nanotubes Exciton-Plasmon Coupling in Carbon Nanotubes

2007-08-23

arxiv.org/abs/0708.3262v2

Optics Commun. 282, 661 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figure

Scientific paper

We study theoretically the interactions of excitonic states with surface electromagnetic modes of small-diameter (~1 nm) semiconducting single-walled carbon nanotubes. We show that these interactions can result in strong exciton-surface-plasmon coupling. The exciton absorption lineshapes exhibit the line (Rabi) splitting $~0.1-0.3$ eV as the exciton energy is tuned to the nearest interband surface plasmon resonance of the nanotube. We expect this effect to open a path to new optoelectronic device applications of semiconducting carbon nanotubes.

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