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 system. We also present realistic simulations of the optical channel capabilities, as well as a discussion of the possible problems of the device.
REFERENCES
1.
D.
Leonard
, M.
Krishnamurthy
, C. M.
Reaves
, S. P.
Deenbaars
, and P. M.
Petroff
, Appl. Phys. Lett.
63
, 3203
(1993
).2.
R.
Leon
, S.
Farfard
, D.
Leonard
, J. L.
Merz
, and P. M.
Petroff
, Appl. Phys. Lett.
67
, 521
(1995
).3.
The software and data used are similar to those used in
M.
Grundmann
, O.
Stier
, and D.
Bimberg
, Phys. Rev. B
52
, 11969
(1995
), but with a strain-corrected electron and heavy hole mass.4.
The center design corresponds to a pyramid of 12 nm base and 6 nm height, lying over a wetting layer 0.6 nm height. The random numbers used follow Gaussian distributions.
5.
R. Notzel, J. Temmyo, A. Kozen, T. Tamamura, T. Fukui, and H. Hasegawa, Proceedings of the 7th Conference of Modulated Semiconductor Structures, Madrid, Spain, 1995.
This content is only available via PDF.
© 1997 American Institute of Physics.
1997
American Institute of Physics
You do not currently have access to this content.
