Research interests:
My area of interest has been theoretical atomic, molecular, and optical physics. Work in
the 1970’s involved atmospheric and astrophysical problems. Work in the 1980s,
centered on issues relating to high-energy lasers and collisions in light fields. Since the
development of laser cooling at NIST in the mid 1980s, I have concentrated on quantum
phenomena associated with cold atoms and molecules. This includes the quantum
dynamics of cold collisions, namely, their precise characterization, their control by
magnetic, electric, or electro-magnetic fields, their role in quantum gases and in lattice
structures with tight confinement, and the production and properties of ultra-cold
molecules. This work continues since retirement from NIST in 2013.