Jon Longtin joined the Mechanical Engineering Faculty at Stony Brook in Fall 1996. His research interests include using the unique qualities of laser light for novel measurement of the thermophysical behavior of liquid and solids. Examples include measuring the surface temperature and concentration of a liquid and determining a liquid's thermophysical properties, e.g., specific heat and thermal conductivity. Another of his interest areas is fundamental and applied aspects of ultra high intensity, short-pulse laser interactions with liquids and solids for laser material processing, where behavior far different than that observed at lower, more moderate laser intensities can occur. Longtin is the author of over thirty publications, including invited chapters in Microscale Energy Transport and Annual Review of Heat Transfer. He is currently a member of the ASME K-15 committee, Heat Transfer in Manufacturing and Materials Processing. Longtin is the recipient of the 1996 JSPS Postdoctoral Fellowship, 1997 NSF CAREER and PECASE awards, and the 1998 Excellence in Teaching Award. His research is funded by the National Science Foundation, NASA, and other sources.