Early laser researcher at Bell Labs, Murray Hill, NJ 1961-1967.Tenured Assoc. Prof. of Physics and Electrical Engineering at USC in LA 1967-1972; Full Professor 1972. Head, Optical Physics Branch, Naval Research Laboratory 1972-1975; Senior Scientist at NRL 1975-1994. Research areas: infrared lasers, synchronous dye laser pairs; nonlinear optics, process-identity of Raman scattering and infrared-visible frequency mixing; fast photochemistry in molecular gases and in crystalline salts; microscopic theory of explosive decomposition of typical detonator materials. Recent: Member APS Mid-Atlantic Senior Physicists' Planning Group; VP two years, President one year, of the National Capital Astronomers; member Cliffhangers informal math study group; member Baltimore Council on Foreign Affairs.