Professor and education officer in electrical engineering and computer science; MacVicar Faculty Fellow
areas of expertise: measurement and characterization of sound-induced motions of inner ear structures, measurement and characterization of microelectromechanical and microfluidic systems, optical and imaging systems for nanoscale motion measurement, electrical engineering
Dennis Freeman, PhD, is a professor of electrical engineering in MIT's Department of Electrical Engineering and Computer Science, and he is an affiliate professor in the Harvard-MIT Division of Health Sciences and Technology.
Freeman's research interests combine the study of optics with the study of micromechanics in both biological and microfabricated systems. His group has developed a system that combines stroboscopic illumination, optical microscopy and computer vision to measure motions of microscopic targets with nanometer resolution. The technique has been applied to obtain the first direct measurements of sound-induced motions of cells and accessory structures in the inner ear. The technique has also been applied to study motions of micro-electromechanical systems (MEMS), and this system has been commercialized by several companies. His group has recently developed a Doppler optical coherence microscope for studies of cochlear mechanics.
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