AlInAsSb Separate Absorption, Charge, and Multiplication Avalanche Photodiodes for Mid-Infrared Detection
Andrew H. Jones, Stephen D. March, Adam A. Dadey, Aaron J. Muhowski, Seth R. Bank, Joe C. Campbell
Abstract
We report AlInAsSb separate absorption, charge, and multiplication (SACM) avalanche photodiodes with a >3- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> optical cutoff, operating at 240 K. Gain and dark current performance further improve with reduced temperature. 65% external quantum efficiency at 2- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> is achieved without anti-reflection enhancement.