Terahertz transitions in quasi-metallic carbon nanotubes
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...
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| Main Authors: | , |
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| Format: | text |
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Animo Repository
2015
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| 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 |
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| Institution: | De La Salle University |
| Summary: | 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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