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RESEARCH PRODUCT
Physical principles of the amplification of electromagnetic radiation due to negative electron masses in a semiconductor superlattice
A. V. ShorokhovM.a. PyataevFeodor KusmartsevN.n. KhvastunovTimo HyartKirill N. Alekseevsubject
PhysicsPhysics and Astronomy (miscellaneous)Condensed matter physicsSolid-state physicsCondensed Matter - Mesoscale and Nanoscale Physicsta114Terahertz radiationAmplifierSuperlatticesemiconductor superlatticeFOS: Physical sciencesfood and beverages02 engineering and technologyElectron021001 nanoscience & nanotechnologyCondensed Matter::Mesoscopic Systems and Quantum Hall Effect01 natural sciencesElectromagnetic radiation3. Good healthMagnetic fieldEffective mass (solid-state physics)0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)010306 general physics0210 nano-technologydescription
In a superlattice placed in crossed electric and magnetic fields, under certain conditions, the inversion of electron population can appear at which the average energy of electrons is above the middle of the miniband and the effective mass of the electron is negative. This is the implementation of the negative effective mass amplifier and generator (NEMAG) in the superlattice. It can result in the amplification and generation of terahertz radiation even in the absence of negative differential conductivity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-03-16 | JETP Letters |