title: Intersubband terahertz transitions in Landau level system of cascade GaAs/AlGaAs quantum well structures in strong tilted magnetic field.
abstract: The tunable terahertz intersubband Landau level transitions in resonant tunneling cascade quantum well structures are considered. The way of lifting the selection rule forbidding the inter-Landau level terahertz transitions of interest by applying a magnetic field tilted with respect to the structure layers is proposed. The importance of asymmetric structure design to achieve considerable values of transition dipole matrix elements is demonstrated.
authors.affiliation: Solid State Physics Dept,, P,N,Lebedev Physical Institute, Moscow 119991, Russia. maxim_telenkov@mail.ru.
authors.forename: Maksim P
authors.initials: MP
authors.lastname: Telenkov
authors.forename: Yury A
authors.initials: YA
authors.lastname: Mityagin
authors.forename: Petr F
authors.initials: PF
authors.lastname: Kartsev