American Institute of Physics
Applied Physics Letters
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.
Ramirez, David A.; Shao, Jiayi; Hayat, Majeed M.; and Krishna, Sanjay, "Midwave Infrared Quantum Dot Avalanche Photodiode" (2010). Electrical and Computer Engineering Faculty Research and Publications. 523.
ADA Accessible Version
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 University of New Mexico at the time of publication.