Bill Kessler: Principal Research Scientist & Manager, Sensor Applications - Physical Sciences Inc.


Bill Kessler received his bachelors and masters degrees in chemistry from Boston University in 1984 and 1986, performing ultra-high resolution gas spectroscopy research. His research focused upon multi-photon excitation of aligned ionic states. In 1986 Bill joined Physical Sciences Inc. in Andover, Massachusetts as a staff scientist. His work at PSI has spanned numerous disciplines including combustion, atmospheric, and chemical laser research. Bill’s focus over the past decade has been in the development of diode laser-based sensors and sensor networks. These sensor architectures leverage the tools created by the optical telecommunication industry for industrial sensor applications. As the Manager of the Sensor Applications Group at PSI Bill is the PSI technical lead in developing and applying laser based sensor technology for pharmaceutical process monitoring and control.


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