Document Type

Article

Language

eng

Publication Date

12-1-2010

Publisher

American Institute of Physics

Source Publication

Applied Physics Letters

Source ISSN

0003-6951

Abstract

We report the first demonstration of a GaAs based avalanche photodiode (APD) operating in the midwave infrared region . In the device, called the quantum dot avalanche photodiode, an intersubband quantum dots-in-a-well detector is coupled with an APD through a tunnel barrier. Using this approach, we have increased the photocurrent and reached a conversion efficiency of 12%, which is one of the highest reported conversion efficiencies for any quantum dot detector.

Comments

Published version. Applied Physics Letters, Vol. 97, No.22 (December 1, 2010). DOI. This article is © American Institute of Physics. Used with permission.

Majeed M. Hayat was affiliated with Univesity of New Mexico at the time of publication.

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