Terahertz transitions in quasi-metallic carbon nanotubes

• Main Authors: Hartmann, Richard R., Portnoi, M. E.
• Format: text
• Published: Animo Repository 2015
• Subjects: Carbon nanotubes; Spectral energy distribution; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/3726; https://animorepository.dlsu.edu.ph/context/faculty_research/article/4728/type/native/viewcontent/012014.html
• Institution: De La Salle University

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...