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People

Division Chief: U.S. Air Force and NORTHCOM, Director's Office
Mr. Thomas Browning is a division chief in the Adaptive Execution Office. He is the principal lead for transitioning technology to the U.S. Air Force (USAF) for Air, Space, and Cyber, and is DARPA liaison to U.S. Northern Command/North American Aerospace Defense Command (NORTHCOM/NORAD). More
Office Director, Defense Sciences Office
Dr. Valerie Browning was named director of DARPA’s Defense Sciences Office (DSO) in December 2017. Dr. Browning has more than 30 years of experience in managing and executing defense-related research and development. Prior to her most recent DARPA appointment, Dr. Browning worked as an independent consultant providing subject matter expertise and strategic planning support to the Department of Defense, Department of Energy, and other government clients in the areas of advanced materials and alternative energy. More
CAPT Daniel Brunk, USN
Special Assistant to the Director, U.S. Navy Operational Liaison, Director's Office
Captain Daniel Brunk joined DARPA as the U.S. Navy operational liaison in 2017. He previously served on the staff of the Chief of Naval Operations in the Operations and Plans Division as the Ocean Systems and Nuclear Matters branch head. More
Dr. John Burke
Program Manager, Microsystems Technology Office
Dr. John Burke joined DARPA as a Program Manager in the Microsystems Technology Office (MTO) in August 2017. His research interests include the development of high-stability, low-noise sensors and frequency synthesis to enable new positioning, navigation, and timing (PNT) and remote detection capabilities. He is particularly interested in the integration of modern atomic physics techniques (e.g. laser cooling and trapping) with photonic circuits and atom chips to reduce the complexity, cost, and size of these techniques while increasing their robustness and reliability for use outside of a laboratory environment. More
Director for Business and Finance, Director's Office
Mr. David Busigo is the director for business and finance in the Adaptive Execution Office. He is responsible for financial oversight within the office and all business activities including financial analysis, budget planning and execution. Mr. Busigo also monitors contractual and programmatic progress of AEO programs and participates in program transition strategy development and execution. More
Program Manager, Defense Sciences Office
Dr. William Carter is a program manager in the Defense Sciences Office. He was formerly the director of the Materials and Microsystems Laboratory at HRL Laboratories. He received his doctorate in applied physics from Harvard University in 1997 and has more than 15 years of experience managing government and industrial materials research programs. His background spans applied physics, materials science, and mechanics. More
William Chappell
Office Director, Microsystems Technology Office
Dr. William Chappell is director of the Microsystems Technology Office (MTO). Serving in this position since June 2014, he has focused the office on three key thrusts important to national security. These thrusts include ensuring unfettered use of the electromagnetic spectrum, building an alternative business model for acquiring advanced DoD electronics that feature built-in trust, and developing circuit architectures for next-generation machine learning. MTO creates the MEMS, photonic, and electronic components needed to gracefully bridge the divide between the physical world in which we live and the digital realm where our information resides. More
Dr. Young-Kai Chen
Program Manager, Microsystems Technology Office
Dr. Young-Kai Chen joined DARPA as a Program Manager in the Microsystems Technology Office (MTO) in September 2017. His research interests include the exploration of innovative technology frontiers in the areas of semiconductor optoelectronic materials, devices, integrated circuits, and advanced system applications for smart sensors, secure broadband wireless, and photonic links. More