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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2008

Dark current analysis of Quantum Cascade Detectors by Magneto-Resistance measurements

Résumé

Magneto-transport experiments have been performed on Quantum Cascade Detectors. These experiments lead to the identification of the different electronic transitions from subbands in one cascade period to subbands in the following one. These transitions contribute to the total current flowing through the structure in the absence of illumination. This dark current is well described within a simple model based on the sum of diffusion events from one cascade to the next one through optical phonon mediated transitions. For the first time, the optical and electronic properties of such a complex heterostructure can be fully predicted without any other adjustable parameter than the doping density. This opens the way to a full quantum design of an infrared detector, in contrast with the phenomenological optimization of structures usually performed in this field.
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Dates et versions

hal-00193979 , version 1 (05-12-2007)

Identifiants

  • HAL Id : hal-00193979 , version 1

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Aurore Gomez, Nicolas Péré-Laperne, Louis-Anne de Vaulchier, Cédric Koeniguer, Angela Vasanelli, et al.. Dark current analysis of Quantum Cascade Detectors by Magneto-Resistance measurements. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2008, 77, pp.085307. ⟨hal-00193979⟩
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