Home People Martha Gray People FacultyFaculty AI+DFaculty CSFaculty EEFaculty EmeritusLecturers Leadership Staff J. W. Kieckhefer Professor, [EE] mgray@mit.edu (617) 258-8974 Office: 25-519 Website Research Areas Biological and Medical Devices and SystemsElectronic, Magnetic, Optical and Quantum Materials and Devices