Archivio Istituzionale della RicercaWe report on photocurrent noise in AlGaAs/GaAs quantum-well infrared photodetectors having nominally the same design, except the number of wells N. The power spectral density does not scale as the inverse of the number of wells N in the presence of infrared radiation. These features can be understood by taking into account the nonlinearity arising at high infrared power as a consequence of the nonuniform potential distribution through the quantum-well structure.
Photocurrent noise in multi-quantum-well infrared photodetectors / Carbone, ANNA FILOMENA; Introzzi, Riccardo; Liu, Hc. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - 82:(2003), pp. 4292-4294. [10.1063/1.1581388#]
Photocurrent noise in multi-quantum-well infrared photodetectors
CARBONE, ANNA FILOMENA;INTROZZI, RICCARDO;
2003
Abstract
We report on photocurrent noise in AlGaAs/GaAs quantum-well infrared photodetectors having nominally the same design, except the number of wells N. The power spectral density does not scale as the inverse of the number of wells N in the presence of infrared radiation. These features can be understood by taking into account the nonlinearity arising at high infrared power as a consequence of the nonuniform potential distribution through the quantum-well structure.
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https://hdl.handle.net/11583/1663783
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