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Jeff joined Droplet Measurement Technologies as President and CEO in 2017. But his enthusiasm for technology and strength for leadership go much farther back. Before coming to Droplet, Jeff served in executive roles and on the Board of Directors at Avo Photonics, Inc. and Ocean Optics, Inc. (both wholly-owned subsidiaries of Halma plc). Prior to Halma, Jeff held several senior leadership positions focused on commercializing new technologies and developing new business models at Hach-Lange (a wholly-owned subsidiary of Danaher Corporation). Working as President of Hach Homeland Security Technologies at one point, Jeff was responsible for some of the platforms’ most challenging work, including that for water/air security, distribution monitoring, advanced technologies, and engineering services.

Jeff received his Ph.D. with a focus in chemical and biochemical engineering at the University of South Florida. He also has a master’s degree in chemical engineering (with a focus in process controls), and he received his bachelor’s degree in chemical engineering from Virginia Tech.

Business Development


Uwe joined Droplet Measurement Technologies as Director of Business Development in May of 2019. He brings over 20 years experience in international business development, sales & marketing, product management and marketing of analytical instrumentation applied in environmentally oriented industries and organizations. With focus on business development and global sales management, he most recently led the Polyscience global sales distribution management team. Prior to joining Polyscience, Uwe led Sensicore’s commercialization efforts. Uwe held several leadership positions and was the Product Marketing Manager of a $28M revenue business unit at Hach (a Danaher Company), where he successfully introduced management tools to monitor product vitality to optimize acquisition integration and product life cycle. Uwe is a graduate of the Horgen Electrical Engineering School (Kanton Zürich, Switzerland).

Customer Contact


Kristie’s focus at Droplet is keeping the researchers and partners we work with and serve at the center of everything we do. She joined the Droplet team nearly a decade ago and is one of the primary contacts for our 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 upholds Droplet’s focus on supporting scientists and is a primary contact for service, support, and order administration inquiries for both domestic and international customers. He 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.

Droplet Science


Duncan is the Director of Science Programs at Droplet Measurement Technologies. His primary area of expertise is in aerosol-cloud interactions, cloud microphysics, and weather modification. Duncan’s work at Droplet focuses on partnering with scientists and research laboratories to design science programs, develop funding proposals, and ensure that program activities are strategically conceived and executed to a high level of scientific accountability. Duncan earned his Ph.D. in Engineering (with a focus in aerosol microphysics) from the University of Denver, and a Master’s degree in Atmospheric Science (with a focus in aerosol-cloud interactions) from Texas A&M University. Prior to joining Droplet, Duncan worked at the National Center for Atmospheric Research (NCAR) conducting atmospheric science field programs using scientific instrumentation to investigate 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, Australia, Arabian Peninsula, India and Asia.


Darrel 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 20 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.


Alexis is Droplet’s primary contact for researchers and scientists studying bioaerosols, black carbon, or cloud condensation nuclei. Her instrument focus at Droplet includes the 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.


Nicole joined Droplet Measurement Technologies as a Project Scientist in 2018. As a project scientist, her motivation is to help researchers design and execute experiments using Droplet instrumentation, with the aim to provide data for their desired research goals. Her instrument focus at Droplet includes the SIBS, WIBS-NEO, SP2, SP2-XR and PAX. Before Droplet, Nicole worked as an Applications Scientist with Aerosol Devices Inc., focusing on the research and development of instrumentation for the collection of airborne particles. Nicole received her M.Sc. in Chemistry at the University of Denver, with a focus in bioaerosol detection and characterization using UV-LIF instrumentation and received her B.Sc. in Chemistry from St. John Fisher College, NY.


Spencer is a member of the Science division at Droplet Measurement Technologies. His areas of expertise include cloud microphysics processes, investigations of weather modification efforts, and evaluations of airborne instrument performance. Spencer has acted as flight scientists during several field deployments, operating a suite of cloud-sensing instruments aboard research aircraft. He received his Master of Atmospheric Science degree from the University of Wyoming, where he was an active member of the UW King Air flight team. His thesis work investigated uncertainties in CDP measurements using data gathered during laboratory and flight-based experiments.

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