Professor Pochi Yeh-- Pochi Yeh obtained his Ph.D. in Physics from the California Institute of Technology in 1977 for research on nonlinear optics and optical properties of superlattices. Before he joined the ECE faculty at UCSB in 1989, Dr. Yeh was the Principal Scientist of the Optics Department at Rockwell International Science Center in Thousand Oaks, where he carried out research in the areas of electro-optics, nonlinear optics, optical phase conjugation, and optical computing. Dr. Yeh is known for several important contributions in optics, including the development of a matrix method for optics of layered media, the theory of photorefractive phase conjugators, and the theory of wave mixing in nonlinear media. In the area of applications, he is the originator of several new device concepts, including phase conjugate optical interferometers, reconfigurable optical interconnection, parallel image subtraction, and optical learning machines. Dr. Yeh was named "Engineer of the Year," at Rockwell Science Center and received the Leonardo da Vinci Award in 1985. He is a Fellow of the Optical Society of America, the Institute of Electrical and Electronics Engineers, and the Photonics Society of Chinese-Americans. Dr. Yeh received the Rudolf Kingslake Medal and Prize from the International Optical Engineering Society in 1989.