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arXiv · 1203.5195

Direct surface cyclotron resonance terahertz emission from a quantum cascade structure

François-Régis Jasnot·Louis-Anne De Vaulchier·Yves Guldner·Gérald Bastard·Angela Vasanelli·Christophe Manquest·Carlo Sirtori·Mattias Beck·Jérôme Faist
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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).

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François-Régis Jasnot, Louis-Anne De Vaulchier, Yves Guldner, Gérald Bastard, Angela Vasanelli, Christophe Manquest, Carlo Sirtori, Mattias Beck, Jérôme Faist. 2012-03-23. Direct surface cyclotron resonance terahertz emission from a quantum cascade structure. https://doi.org/10.1063/1.3692572

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