Quantum cascade lasers in magnetic field: An active region model

I. Savić, V. Milanović, D. Indjin, Z. Ikonić, V. D. Jovanović, P. Harrison

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)


A model of the active region of a quantum well cascade laser (QCL) subjected to an externally applied magnetic field is presented, based on a solution of the coupled rate equations, assuming unity injection. Landau quantization induced by magnetic confinement imposes a need for a modification of the well-established active region model in order to accurately describe the processes occurring in an entirely discrete spectrum. Landau level (LL) configuration has major consequences for scattering processes, enhancing or inhibiting them depending on the inter-LL energy separation, and strongly modifies the population inversion and optical gain that can be estimated from the presented model. Numerical calculations were performed for a GaAs/AlGaAs QCL emitting at λ = 11.4 μm in a magnetic field of 10-60 T.

Original languageEnglish
Pages (from-to)1812-1816
Number of pages5
JournalPhysica Status Solidi (B) Basic Research
Issue number9
Early online date1 Jul 2005
Publication statusPublished - 1 Jul 2005
Externally publishedYes
EventXVII Latin American Symposium on Solid State Physics - La Habana, Cuba
Duration: 6 Dec 20049 Dec 2004
Conference number: 17


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