Terahertz transitions in quasi-metallic carbon nanotubes

College

College of Science

Department/Unit

Physics

Document Type

Conference Proceeding

Source Title

IOP Conference Series: Materials Science and Engineering

Volume

79

Issue

1

Publication Date

1-1-2015

Abstract

We study interbanddipole transitions across curvature-induced narrow gaps in quasi-metallic single-walled carbon nanotubes. The curvature effects not only open a gap in the nanotube energy spectrum but also allow optical transitions, which happen to be in the highly-desired terahertz frequency range. Applying a magnetic field along the nanotube axis allows one to tune the frequency peaks in the spectral density of absorption.

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Digitial Object Identifier (DOI)

10.1088/1757-899X/79/1/012014

Disciplines

Physics

Keywords

Carbon nanotubes; Spectral energy distribution

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