Abstract
Ultrashort-pulsed lasers have been attracting worldwide interest in science and engineering communities. Studying the thermal deformation induced by ultrashort pulsed lasers is important for preventing thermal damage. In this article, we consider a three-dimensional (3-D) double-layered metal thin film, where the interface between layers is imperfectly thermal contact, and present a finite difference scheme and an iterative algorithm for studying thermal deformation in the metal thin film exposed to ultrashort pulsed lasers. The method is demonstrated by investigating the thermal deformation in a 3-D gold-chromium thin film.