Ian S Butler
McGill University, Canada
Ian S Butler has been working at McGill University; he has served as the Department Chair and Associate Vice-Principal. He is an honorary member of the Spectroscopy Society of Canada, a fellow of both the Chemical Institute of Canada and the Royal Society of Chemistry. He has supervised about 200 researchers, resulting in the co-authorship of about 540 publications. His honors include the Gerhard Herzberg Award for Excellence in Spectroscopy and the David Thomson Award for Excellence in Graduate Teaching and Supervision. His current research focuses on structural changes induced by high pressures and variable temperatures, biomass conversion, mechanochemistry and art forensics.
Throughout the world, considerable effort is being expended in identifying and preserving objects of national cultural heritage interest. Art forensics is particularly important in repairing damaged paintings and frescoes through the identification of the pigments that artists have used over the centuries. Such pigment analyses are also crucial in identifying forgeries. Most large art museums, e.g., National Gallery in London, Getty Museum in California and Metropolitan Museum of Art in New York City, now have laboratories attached to them, which are equipped with an array of modern molecular spectroscopic instrumentation, e.g., infrared, Raman, single-crystal and powder X-ray diffraction and mass spectrometers. In our laboratory, we have focused our research work on the applications of infrared and Raman spectroscopy in art forensics. In particular, we have used photoacoustic infrared spectroscopy in establishing a data base of molecular spectroscopic information for a wide range of solid inorganic and organic pigments. In this lecture, we will give some selected examples of molecular spectroscopy in cultural heritage studies and also describe the technique of photoacoustic infrared spectroscopy and its application in art forensics.