Terahertz intersubband emission in strong magnetic fields
- 1 July 2002
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (1) , 67-69
- https://doi.org/10.1063/1.1490629
Abstract
Electroluminescence in quantum-cascade structures based on vertical transitions is studied in a strong perpendicular magnetic field in the limit in which the cyclotron energy is larger than the intersubband transition energy. Cyclotron emission and a luminescence intensity enhancement up to a factor of 6 is observed in GaAs/AlGaAs and InGaAs/InAlAs vertical transition-based quantum-cascade structures.Keywords
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