Control of ultrashort optical electromagnetic pulses in carbon nanotubes at low temperatures

Details Control of ultrashort optical electromagnetic pulses in carbon nanotubes at low temperatures Control of ultrashort optical electromagnetic pulses in carbon nanotubes at low temperatures

2009-05-26

arxiv.org/abs/0905.4173v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 10 figures

Scientific paper

Propagation of the alternating electromagnetic field in a system of zigzag carbon nanotubes in the case of low temperatures and applied external electric fields are considered. The electronic system of the carbon nanotubes is investigated microscopically nonmetering an interaction with a phonon subsystem by the fact that the electromagnetic pulse is critically short. An efficient equation for the vector-potential amplitude of the alternating electromagnetic field is obtained. Solutions of solitons analogs which correspond to solitons in the case of cosine dispersion law for the electronic subsystem have been elicited. The dependences of obtained nonlinear solutions on problem parameters and the applied external electric fields were analyzed. The possibility to control the shape of optical pulse in wide range was shown.

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