Direct surface cyclotron resonance terahertz emission from a quantum cascade structureReport as inadecuate




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1 LPA - Laboratoire Pierre Aigrain 2 MPQ - Matériaux et Phénomènes Quantiques 3 Institute of Quantum Electronics

Abstract : A strong magnetic field applied along the growth direction of a semiconductor quantum well gives rise to a spectrum of discrete energy states, the Landau levels. By combining quantum engineering of a quantum cascade structure with a static magnetic field, we can selectively inject electrons into the excited Landau level of a quantum well and realize a tunable surface emitting device based on cyclotron emission. By applying the appropriate magnetic field between 0 and 12 T, we demonstrate emission from a single device over a wide range of frequencies 1-2 THz and 3-5 THz.





Author: François-Régis Jasnot - Louis-Anne De Vaulchier - Yves Guldner - Gérald Bastard - Angela Vasanelli - Christophe Manquest - Car

Source: https://hal.archives-ouvertes.fr/



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