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-Thermogravimetric analysis of materials through the use of high-temperature resonant crystal microbalances.
-Elastic and anelastic properties of high-temperature piezoelectric materials.
-Resonant MEMS platforms for detection of molecules and characterization of molecule-surface interactions in liquid and gas.
-Nondestructive acoustic characterization of implantable medical devices.
-Brillouin light scattering for the characterization of acoustic properties of materials.
Ward Johnson is a physicist with a background in acoustics metrology and elastic and anelastic properties of materials. He is a graduate of the Physics Department of the University of Illinois at Urbana-Champaign, with a PhD thesis that was focused on anelastic effects of irradiation-induced point defects in semiconductors. In 1987, he joined the Metallurgy Division of the National Institute of Standards and Technology (NIST; Gaithersburg, Maryland) and, in 1994, transferred to the Materials Reliability Division of NIST in Boulder, Colorado. His work at NIST has included the development and application of metrology for characterizing mechanical and magnetic properties of macroscopic and nanoscale materials using resonant acoustics, pulsed laser ultrasonics, and Brillouin light scattering.
International Society for Optical Engineering (SPIE)
Materials Reliability Division
Nanoscale Reliability Group
1994 - present, Physicist, Materials Reliability Division, MML, NIST, Boulder, CO
1987 - 1994, Physicist, Metallurgy Division, MML, NIST, Gaithersburg, MD
Ph.D., Physics, University of Illinois, Urbana-Champaign, 1987
Thesis topic: Anelastic effects of irradiation-induced point defects in semiconductors
B. S., Physics, University of Minnesota, Minneapolis, 1978