Single wall carbon nanotubes as coherent plasmon generators

Details Single wall carbon nanotubes as coherent plasmon generators Single wall carbon nanotubes as coherent plasmon generators

2011-09-02

arxiv.org/abs/1109.0541v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

2nd version: 7 pages, 4 figures; 1 appendix & 3 refs. added; 1 typo corrected

Scientific paper

The possibility of low-energy surface plasmon amplification by optically excited excitons in small-diameter single wall carbon nanotubes is theoretically demonstrated. The nonradiative exciton-plasmon energy transfer causes the buildup of the macroscopic population numbers of coherent localized surface plasmons associated with high-intensity coherent local fields formed at nanoscale throughout the nanotube surface. These strong local fields can be used in a variety of new optoelectronic applications of carbon nanotubes, including near-field nonlinear-optical probing and sensing, optical switching, enhanced electromagnetic absorption, and materials nanoscale modification.

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