Guang S. He is a research scientist who has worked largely in the field of nonlinear optics and photonics for more than forty years. From 1969-1986 he was a research scientist at Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences. Since 1986 he has pursued his research career in the USA, worked first in the Photonics Research Laboratory (1987-1999) and then at the Institute for Lasers, Photonics and Biophotonics at the State University of New York at Buffalo (1999-present). His research activities have mostly focused on the new types of stimulated scattering, optical phase-conjugation, multi-photon nonlinear effects and applications.