DMT Staff



Jeff Throckmorton, PhD joined Droplet Measurement Technologies as President and CEO in 2017.

Before Droplet, he held technology leadership positions and was on the Board of Directors at Avo Photonics, Inc. and Ocean Optics, Inc.; both companies are wholly-owned subsidiaries of Halma plc. Prior to Halma, he was with Hach-Lange (a wholly-owned subsidiary of Danaher Corporation). While there, Dr. Throckmorton held several senior leadership positions focused on commercializing new technologies and developing new business models. One of these positions was President of Hach Homeland Security Technologies where he had responsibility for some of the platforms’ most challenging work including that for water/air security, distribution monitoring, advanced technologies, and engineering services; in this role, his teams also worked on several defense related research projects.

Dr. Throckmorton received his Ph.D. with a focus in Chemical and Biochemical Engineering at the University of South Florida, has a Masters Degree in Chemical Engineering (with a focus in process controls), and received his Bachelor’s Degree in Chemical Engineering from Virginia Tech.



Alexis Attwood Badder, PhD is Droplet’s primary contact for researchers and scientists studying bioaerosols, black carbon, or cloud condensation nuclei. Her instrument focus at Droplet includes WIBS-NEO, SP2, CCN, PAX, UHSAS, and SP2-XR. Alexis earned her Ph.D. in Atmospheric Chemistry from the University of New Hampshire and continued with postdoctoral research at the National Oceanic and Atmospheric Administration (NOAA). Her research focused on ground based measurement of aerosol optical properties and their impacts on the atmosphere as well as instrument design and development.


Matt Freer is Droplet’s primary contact for cloud physics, aircraft icing, precipitation, and fog measurement applications. His instrument focus at Droplet includes CDP, CIP, PIP, CAPS-DPOL, CCP, BCPD, PCASP, FM-120 and MPS, among others. Prior to joining Droplet in 2012, Matt developed standards for airborne data processing and transmission for the European Facility for Airborne Research (EUFAR) program in Toulouse. Matt also spent several years with the Atmospheric Sciences department at the University of Illinois, Urbana-Champaign doing cloud microphysics research and development of processing algorithms, participating in several field campaigns for the DOE ARM-UAV program. He holds an M.S. in Aerospace Engineering from the University of Illinois at Urbana-Champaign.




Duncan Axisa, PhD is Droplet Measurement Technology’s Director of Science Programs. His primary expertise is in weather modification and cloud physics. Duncan’s work at Droplet focuses on partnering with researchers and agencies to design programs, develop funding proposals, execute programs, and analyze data. Duncan earned his PhD from University of Denver, and a Master’s degree in Atmospheric Science from Texas A&M University. Prior to joining Droplet, Duncan worked at NCAR conducting atmospheric science field programs using scientific instrumentation to investigate boundary layer aerosol microphysics, aerosol-cloud interactions, cloud and precipitation microphysics, new particle formation, and weather modification. He has participated in over 30 field campaigns including campaigns in the US, Europe, Arabian Peninsula, India and Asia.


Darrel Baumgardner, PhD founded Droplet Measurement Technologies in 1987, and he continues working at Droplet today as Chief Scientist and member of the Board of Directors. He spent twenty years at the National Center for Atmospheric Research in the United States and 14 years as a senior scientist at the Universidad Nacional Autonoma de Mexico, the largest university in Latin America. He is an internationally recognized expert on measurements of aerosol and cloud particles and has developed a number of new techniques for measuring their properties. Darrel obtained his Ph.D. from the University of Wyoming.


Greg Kok is the Director of Research and Development at DMT. Dr. Kok received his Ph.D. In Analytical Chemistry from the University of Michigan. Prior to joining DMT, he taught college-level chemistry and worked at NCAR’s aviation facility, where he was active in instrumentation development and applications.



Kristie Stowers has been with DMT for over 8 years and is one of the primary contacts for DMT’s customers for support, service, customer-events, sponsorships and other inquiries. Kristie holds a Bachelor’s Degree from California State San Bernardino in Marketing and has an extensive background in marketing, advertising, and sales.


Logan Rocklin is a primary contact for service, support, and order administration inquiries for domestic or international customers. Logan has worked in multiple administrative capacities throughout his career, and brings a wealth of expertise as a customer liaison. He holds a BSBA in finance and accounting from the University of Colorado.