2013 Medal Winners | francais

The 2013 CAP Medal for Lifetime Achievement in Physics

is awarded to

David John Lockwood

"I am humbled by this prestigious recognition from my peers for a lifetime’s work in this wonderful country. I dedicate this award with grateful thanks to my talented colleagues at the National Research Council, without whom none of this work would have been possible." winner citation

The Canadian Association of Physicists (CAP) is pleased to announce that the 2013 CAP Medal for Lifetime Achievement in Physics is awarded to David John Lockwood, National Research Council, for his distinguished and sustained contributions to the elucidation of the optical properties of solids, low-dimensional semiconductor systems, and in particular light-emission from silicon, as well as his contributions to the advancement of physics in Canada and worldwide. announcement

During the lifetime as a physicist at the National Research Council Canada David Lockwood made distinguished and sustained contributions to the elucidation of the optical properties of solids, low-dimensional semiconductor systems, and in particular light-emission from silicon.

Lockwood made significant contributions in the area of inelastic light scattering applied to elucidate electronic excitations in magnetic solids. The “Light scattering in magnetic solids” book with M. Cottam has become a standard reference in the field. The high precision light scattering technique has been important in advancing the physics of low-dimensional semiconductor structures in Canada. Lockwood’s measurements demonstrated opening of gaps in phonon bands in Si/SiGe and GaAs/GaAlAs superlattices grown at the NRC. His resonant electronic Raman experiments were among first to demonstrate phonons and quantized electronic excitations in zero dimensional structures, semiconductor quantum dots.

While many of the contributions were invaluable, the work on optical properties of silicon made a significant global impact. In landmark papers published in Nature in 1995 and in the Physical Review Letters in 1996, Lockwood et al. convincingly demonstrated for the first time quantum confinement-induced visible light emission in a silicon nanostructure, Si/SiO2 superlattice, grown at the NRC Canada. Lockwood’s work has been recognized internationally and made significant impact on the field of silicon photonics in Information and Communication Technology. During his lifetime career David Lockwood also distinguished himself by his service to community organizing conferences, serving on Editorial Boards of Solid State Communications, Physics in Canada, Executive of Canadian Association of Physicists and the Royal Society of Canada. Lockwood’s contributions to physics have been recognized by his election as Fellow of the American Physical Society, the Royal Society of Canada, Brockhouse Medal of the CAP, Tory Marshal Medal of the RSC and the Centennial Achievement Award of the Electrochemical Society. nominator citation