Brian F. Aull

Brian F. Aull (M’75–SM’06) received the B.S. degree in electrical engineering from Purdue University, West Lafayette, IN, USA, and the Master's and Ph.D. degrees in electrical engineering from Massachusetts Institute of Technology, Cambridge, MA, USA. He is currently a Technical Staff Member in the Advanced Imager Technology Group, MIT Lincoln Laboratory, Lexington, MA, USA. He led the development of Geiger-mode avalanche photodiode (GmAPD) arrays hybridized to all-digital CMOS circuitry. These imagers were used by the Laboratory to demonstrate lidar imaging systems based on measurement of photon flight time. He led the successful demonstration of a photon time stamping imager based on the Lincoln Laboratory's three dimensional (3-D) integrated circuit fabrication process; this was the world's first three-tier 3-D integrated circuit. Later, he extended the GmAPD technology to adaptive optics applications, where he led the development of Shack–Hartmann wavefront sensing arrays based on GmAPD quad cells. More recently, he has developed large-format GmAPD arrays for passive imaging.