Professor at the College of Optical Sciences (Tucson weather, Monsoon tracker), joint appointment with the Department of Physics, at the University of Arizona, Honorary Professor in the School of Physics and Astronomy at the University of St. Andrews; B. Sc., Honorary Professor in the Physics Department of the School of Engineering & Physical Sciences at Heriot-Watt University, Scotland, 1980; Ph. D. Heriot-Watt University, 1983; Max-Planck Institute for Quantum Optics, Munich 1983-1985; College of Optical Sciences, University of Arizona, 1985-date.