Generation of terahertz radiation by hot electrons in carbon nanotubes.
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.
Kibis
O V
OV
Department of Applied and Theoretical Physics, Novosibirsk State Technical University, Novosibirsk 630092, Russia.
da Costa
M Rosenau
MR
Portnoi
M E
ME
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
D008670:Metals; D037742:Nanotubes, Carbon