The quantum dot spectrometer

We propose a novel photodetector capable of multi-spectral channel operation. The device makes use of the ability of a quantum dot plane to capture an optical spectrum, and of a resonant-tunneling structure to perform spectrally sensitive read-out. We present a design made out in the InAs–GaAs–AlxGa...

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Bibliographic Details
Published in:Applied physics letters 1997-12, Vol.71 (24), p.3558-3560
Main Authors: Jimenez, J. L., Fonseca, L. R. C., Brady, D. J., Leburton, J. P., Wohlert, D. E., Cheng, K. Y.
Format: Article
Language:English
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Summary:We propose a novel photodetector capable of multi-spectral channel operation. The device makes use of the ability of a quantum dot plane to capture an optical spectrum, and of a resonant-tunneling structure to perform spectrally sensitive read-out. We present a design made out in the InAs–GaAs–AlxGa1−xAs system. We also present realistic simulations of the optical channel capabilities, as well as a discussion of the possible problems of the device.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.120390