title: Proposal for a bosonic cascade laser.
abstract: We propose a concept of a quantum cascade laser based on transitions of bosonic quasiparticles (excitons) in a parabolic potential trap in a semiconductor microcavity. This laser would emit terahertz radiation due to bosonic stimulation of excitonic transitions. The dynamics of a bosonic cascade is strongly different from the dynamics of a conventional fermionic cascade laser. We show that populations of excitonic ladders are parity dependent and quantized if the laser operates without an external terahertz cavity.
authors.affiliation: Division of Physics and Applied Physics, Nanyang Technological University, 637371 Singapore, Singapore.
authors.forename: T C H
authors.initials: TC
authors.lastname: Liew
authors.affiliation: Ioffe Phyical-Technical Institute of the RAS, 26, Polytechnicheskaya, St. Petersburg 194021, Russia and Spin Optics Laboratory, St. Petersburg State University, 1 Ul'anovskaya, St. Petersburg 198504, Russia.
authors.forename: M M
authors.initials: MM
authors.lastname: Glazov
authors.affiliation: Ioffe Phyical-Technical Institute of the RAS, 26, Polytechnicheskaya, St. Petersburg 194021, Russia and Spin Optics Laboratory, St. Petersburg State University, 1 Ul'anovskaya, St. Petersburg 198504, Russia.
authors.forename: K V
authors.initials: KV
authors.lastname: Kavokin
authors.affiliation: Division of Physics and Applied Physics, Nanyang Technological University, 637371 Singapore, Singapore and Science Institute, University of Iceland, Dunhagi-3, IS-107 Reykjavik, Iceland.
authors.forename: I A
authors.initials: IA
authors.lastname: Shelykh
authors.affiliation: Ioffe Phyical-Technical Institute of the RAS, 26, Polytechnicheskaya, St. Petersburg 194021, Russia and St. Petersburg Academic University, 8/3 Khlopina Street, St. Petersburg 194021, Russia.
authors.forename: M A
authors.initials: MA
authors.lastname: Kaliteevski
authors.affiliation: Spin Optics Laboratory, St. Petersburg State University, 1 Ul'anovskaya, St. Petersburg 198504, Russia and University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom.
authors.forename: A V
authors.initials: AV
authors.lastname: Kavokin