Femtosecond electronic heat-transport dynamics in thin gold films

S. D. Brorson; J. G. Fujimoto; E. P. Ippen

doi:10.1103/PhysRevLett.59.1962

Femtosecond electronic heat-transport dynamics in thin gold films

S. D. Brorson, J. G. Fujimoto, and E. P. Ippen

Phys. Rev. Lett. 59, 1962 – Published 26 October 1987

Abstract

We have observed ultrafast heat transport in thin gold films under femtosecond laser irradiation. Time-of-flight (from-pump back-probe) measurements indicate that the heat transit time scales linearly with the sample thickness, and that heat transport is very rapid, occurring at a velocity close to the Fermi velocity of electrons in Au.

Received 7 August 1987

DOI:https://doi.org/10.1103/PhysRevLett.59.1962

Authors & Affiliations

S. D. Brorson, J. G. Fujimoto, and E. P. Ippen

Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139