I'm interested in nonlinear optics, atom optics and optical precision measurements. In nonlinear optics, I study photorefractive systems for measurement and information processing, especially self-organized information processing. Our group is currently investigating acoustic and RF antenna-array signal processing and sensing of chemical vapors. Atom-optics research centers on the development of atom waveguides, atom "chip" technology, and the use of Bose-Einstein condensates to make practical devices. The group is currently developing integrated atom interferometers for inertial navigation and other sensing applications.