Speaker
Prof.
Sergey Maksimenko
(Institute for Nuclear Problems, Belarusian State University)
Description
We demonstrate that surface plasmon-polariton waves with low phase velocity in carbon nanostructures can be utilized for the generation of coherent terahertz radiation through the Cherenkov mechanism, the effect being expected to be observable in carbon nanotubes and being especially pronounced in spatially expanded double- and multi-layer graphene structures owing to the suppression of the inter-layer tunneling. Generation frequency tuning is proposed by varying the graphene doping, the number of graphene sheets, the distance between sheets, etc. Significant slowing down of plasmon-polariton in carbon nanotubes and multi-layered graphene structures allows proposing them for nano-scale realization of traveling wave tube.
Primary author
Dr
Konstantin Batrakov
(Belarusian State University, Institute for Nuclear Problems)
Co-author
Prof.
Sergey Maksimenko
(Institute for Nuclear Problems, Belarusian State University)
