The laser polarization as control parameter in the pattern formation

Details The laser polarization as control parameter in the pattern formation The laser polarization as control parameter in the pattern formation

2009-02-25

arxiv.org/abs/0902.4374v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures

Scientific paper

The recently observed dependence of the periodic surface structures on the light polarization in the laser induced pattern formation is analyzed within a model where the polarization induces significant deviation the spatial distribution of the energy deposited by the photon from isotropic energy distribution. We argue that the laser polarization breaks the rotation symmetry on the surface and is responsible for the correlation of the surface structures with the degree and the direction of polarization. Moreover it is shown that the polarization induces the appearence of novel features of the surface morphology and time evolution, which could be directly tested experimentally.

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