Polarization charge model for laser-induced ripple patterns in dielectric materials
作者： P. Temple , M. Soileau
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摘要: An explanation of laser-induced ripples in dielectric surfaces is given. The model takes into account the polarization charge which is induced on the boundaries of defects by the applied laser field. It is shown that this charge results in a sinusoidally varying perturbation to the applied laser field in the vicinity of the defect, and that the perturbation field has a period of\lambda/n, where λ is the laser wavelength and n is the index of the dielectric. It is further shown that this perturbation is greatest along the direction of laser polarization. At …
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