ABILITY TO EMIT STIMULATED TERAHERTZ RADIATION BETWEEN LANDAU LEVELS IN GaAs/Al GaAs QUANTUM WELL
Authors: Doan The Ngo Vinh
JOURNAL OF SCIENCE VINH UNIVERSITY
: Vol 50 2A/2021 : 5-11
Publishing year: 10/2021
In this paper we show that a population inversion can be achieved in
the system of Landau levels in quantum well structures by a considerable difference
between intersubband and intrasubband electron-electron scattering rate. This
mechanism allows the generation of emission terahertz stimulated radiation. The
frequency of the radiation may continuously be tuned in a wide range of terahertz
frequencies by the variation of the magnetic field strength