title: Generation of terahertz radiation by hot electrons in carbon nanotubes.
abstract: We demonstrate theoretically that quasi-metallic carbon nanotubes emit terahertz radiation induced by an applied voltage. It is shown that in the ballistic transport regime their spontaneous emission spectra have a universal frequency and bias voltage dependence, which raises the possibility of utilizing this effect for high-frequency nanoelectronic devices.
authors.affiliation: Department of Applied and Theoretical Physics, Novosibirsk State Technical University, Novosibirsk 630092, Russia.
authors.forename: O V
authors.initials: OV
authors.lastname: Kibis
authors.forename: M Rosenau
authors.initials: MR
authors.lastname: da Costa
authors.forename: M E
authors.initials: ME
authors.lastname: Portnoi
mesh_terms: D003460:Crystallization; D004553:Electric Conductivity; D004563:Electrochemistry / Q000379:methods; D004581:Electronics; D004583:Electrons; D008422:Materials Testing; D008670:Metals; D015233:Models, Statistical; D053758:Nanoparticles; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013696:Temperature
chemical_list: D008670:Metals; D037742:Nanotubes, Carbon