Animations from a Molecular Dynamics Simulation of Laser Melting

Animated sequences of snapshots from a molecular dynamics simulation of laser melting
(Click on an image to view animation)

Homogeneous melting in the middle of the irradiated film
Animated GIF Image

Heterogeneous melting near the back of the irradiated film
Animated GIF Image

Animated sequences of snapshots that can be viewed by clicking on the above images show the microscopic picture of the melting process in a 50 nm Ni film irradiated with a 200 fs laser pulse at an absorbed fluence of 430 J/m². Atoms are colored according to the local order parameter - red atoms have local crystalline surroundings, blue atoms belong to the liquid phase.

A detailed discussion of the simulations shown in this page is given in

D. S. Ivanov and L. V. Zhigilei, The effect of pressure relaxation on the mechanisms of short pulse laser melting, Phys. Rev. Lett. 91, 105701, 2003.
Full Text: PDF (824 kB)

D. S. Ivanov and L. V. Zhigilei, Combined atomistic-continuum modeling of short pulse laser melting and disintegration of metal films, Phys. Rev. B 68, 064114, 2003.
Full Text: PDF (4.8 MB)

Animated sequences of snapshots from a molecular dynamics simulation of laser melting (Click on an image to view animation)

Animated sequences of snapshots from a molecular dynamics simulation of laser melting
(Click on an image to view animation)