My research at Janelia centers on the photophysics of fluorescent molecules used for two-photon microscopy and for superresolution imaging. I also dabble in other methods for noninvasive measurements based on linear and nonlinear optical techniques, with the goal to improve the speed and information content of whole-animal imaging. In past work, I have contributed to the development of new types of lasers, extreme nonlinear optics, single-molecule research, and DNA sequencing based on phosphate-labeled nucleotides. I received my B.A. in Physics from SUNY-Binghamton and my Ph.D. in Applied Physics from Stanford University. I did postdoctoral work at AT&T Bell Laboratories. I have held research staff positions at Bell Labs and SEQ Ltd. and research management positions at Praelux Inc. and Amersham Biosciences/GE Healthcare.