title: Single laser beam measurement of thermal diffusivity.
abstract: Thermal diffusion properties of interfaces are measured using self-induced surface thermal lensing with a single laser beam. The time evolution of the reflected beam reveals information on heat diffusion away from the interface. Unambiguous correlation between measured signal and thermal diffusivity is shown, theoretically and experimentally, from which calibration curves are obtained. Being simpler and less sensitive to vibrations and misalignments, the technique offers definite advantages over standard two-beam (pump-probe) methods.
authors.affiliation: Département de Physique et d'Astronomie, Université de Moncton, Canada.
authors.forename: Jean-Philippe
authors.initials: JP
authors.lastname: Bourgoin
authors.forename: Serge
authors.initials: S
authors.lastname: Doiron
authors.forename: Michel
authors.initials: M
authors.lastname: Deveaux
authors.forename: Alain
authors.initials: A
authors.lastname: Haché