Terahertz transitions in carbon nanotubes and graphene nanoribbons
Institute of Electrical and Electronics Engineers (IEEE)
© 2017 IEEE
Interband dipole transitions are calculated in quasi-metallic single-walled carbon nan-otubes and armchair graphene nanoribbons. It is shown that the curvature effects for tubes and the edge effects for ribbons result not only in a small band gap opening, corresponding to THz frequencies, but also in a significant enhancement of the transition probability rate across the band gap. This makes these nanostructures perspective canditates for sources and detectors of THz radiation.
This work was supported by the EU FP7 ITN NOTEDEV (Grant No. FP7-607521); FP7 IRSES projects QOCaN (Grant No. FP7-316432), INTERNOM (Grant No. FP7-612624), CANTOR (Grant No. FP7-612285), H2020 RISE project CoExAN (Grant No. H2020-644076) and the British Council.
This is the author accepted manuscript. The final version is available from IEEE via the DOI in this record.
2017 International Conference on Electromagnetics in Advanced Applications (ICEAA), 11-15 September 2017, Verona, Italy pp. 1178 - 1181