The quantum dot spectrometer

J. L. Jimenez, L. R.C. Fonseca, D. J. Brady, J. P. Leburton, D. E. Wohlert, K. Y. Cheng

Research output: Contribution to journalArticlepeer-review

32 Scopus citations


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.

Original languageEnglish (US)
Pages (from-to)3558-3560
Number of pages3
JournalApplied Physics Letters
Issue number24
StatePublished - Dec 15 1997
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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