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We consider expansion, break off, and flight of 10 nm molybdenum filmdeposited onto glass support. These events are initiated by action ofsubpicosecond laser pulse onto film. Approximations for two-temperatureequation of state and electron--ion coupling parameter are developed. Heatconduction is unimportant because film is ultrathin and because radius of alaser beam is rather large $\sim 10$ $\mu$m (thus lateral thermal spreading isinsignificant at the considered time scale). We use two-temperatureone-dimensional hydrodynamic code to follow evolution of laser induced flow.Additional code for treating transmission and reflection of a monochromaticelectromagnetic wave is developed. It is applied to describe interferencebetween transmitted and reflected waves in the layered structure appearingthanks to laser induced expansion and separation of a film.

Dynamics of supported ultrathin molybdenum films driven by strong short laser impact