Physical Principles of the Amplification of Electromagnetic Radiation Due to Negative Electron Masses in a Semiconductor Superlattice

Abstract

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.

arXiv comment5 pages, 3 figures

References in corpus (5)

• Theory of parametric amplification in in superlattices
• Effect of temperature on resonant electron transport through stochastic conduction channels in superlattices
• Model of the Influence of an External Magnetic Field on the Gain of Terahertz Radiation from Semiconductor Superlattices
• Controlling high-frequency collective electron dynamics via single-particle complexity
• Direct surface cyclotron resonance terahertz emission from a quantum cascade structure

Cited by in corpus (2)

• Superlattice nonlinearities for Gigahertz-Terahertz generation in harmonic multipliers
• The non-linear terahertz response of hot electrons in low-dimensional semiconductor superlattices: Suppression of the polar-optical phonon scattering