Adam J. Fleisher is a Research Chemist at the National Institute of Standards & Technology (NIST) in Gaithersburg, MD, U.S.A. His research involves the development of advanced optical sensing and precision molecular spectroscopy techniques using optical frequency combs, quantum-cascade lasers, and high-finesse optical resonators. Prior to joining NIST, AJ Fleisher was a National Research Council postdoctoral fellow at JILA (NIST and University of Colorado). He earned his Ph.D. in Physical Chemistry from the University of Pittsburgh, and his B.S. in Chemistry from Elizabethtown College.