Professor Harris' current interests include experimental methods in high-resolution borehole geophysics for reservoir management applications, attenuation mechanisms in natural media, acoustical spectroscopy, and monitoring techniques for monitoring geological sequestration of carbon dioxide. Professor Harris teaches classes on waves in complex media and borehole seismology. He has advised graduate students now working in the petroleum industry, the medical imaging industry, and academia. In 1992, Prof. Harris founded TomoSeis Corporation. The company was later purchased by Core Laboratories, a Dutch oilfield services company.