Prof. Harry L. Welsh

Prof. Harry Welsh's distinguished research activity in molecular spectroscopy at the University of Toronto spanned a period of forty years. He pioneered the study of collision-induced infrared absorption and of molecular complexes, and of the infrared and Raman spectra of liquid and solid hydrogen. During his years as chair in the 1960's, Prof. Welsh guided a period of rapid growth of the Department of Physics. The H.L. Welsh Lectures in Physics were begun in 1975 on the occasion of his 65th birthday and have become an annual event.
Posters of Previous Welsh Lectures


Welsh Lecture 2024 Poster


Welsh Lecture 2023 Poster


Sreekar Voleti
Welsh Poster 2022


Milica Banic and Vincent MacKay
Welsh Poster 2021 A


Welsh Poster 2019


Welsh Poster 2018


Welsh Poster 2017


Welsh Poster 2016


Welsh Poster 2015


Welsh Poster 2014


Welsh Poster 2013


Welsh Poster 2012


Welsh Poster 2011
Past Speakers
- 2024
Prof. Alain Aspect (Institut d'Optique Graduate School - Université Paris-Saclay - France) - 2022 Nobel Prize in Physics
Prof. Steven Kivelson (Stanford University, USA) - 2023
Prof. Marcia J. Rieke (Steward Observatory)
Dr. Omar Hurricane (Lawrence Livermore National Laboratory) - 2022
Prof. Nigel Goldenfeld (Department of Physics, University of California San Diego)
Prof. Jeff Dahn (Department of Physics and Atmospheric Sciences, Dalhousie University) - 2021
Prof. Subir Sachdev (Department of Physics, Harvard University)
Prof. Juan Collar (Department of Physics, University of Chicago) - 2019
Prof. Amy Cazenave (ISSI, Bern, Switzerland)
Prof. Donna Strickland (University of Waterloo) - 2018 Nobel Prize in Physics - 2018
Prof. Ana Maria Rey (University of Colorado)
Prof. Seamus Davis (Cornell University) - 2017
Prof. Nergis Mavalvala (MIT)
Prof. Leon Balents (University of California, Santa Barbara) - 2016
Dr. Nima Arkani Hamed (Princeton University)
Dr. Andrea Ghez (University of California, Los Angeles) - 2020 Nobel Prize in Physics - 2015
William Bialek (Princeton University)
Prof. Serge Haroche (Collège de France, Paris) - 2012 Nobel Prize in Physics - 2014
Rolf Dieter Heuer (CERN)
Zhi-Xun Shen (Stanford University)