Ultrashort-pulse laser machining of dielectric materials

  title={Ultrashort-pulse laser machining of dielectric materials},
  author={M. Perry and B. Stuart and P. S. Banks and M. Feit and V. Yanovsky and A. Rubenchik},
  journal={Journal of Applied Physics},
There is a strong deviation from the usual τ1/2 scaling of laser damage fluence for pulses below 10 ps in dielectric materials. This behavior is a result of the transition from a thermally dominated damage mechanism to one dominated by plasma formation on a time scale too short for significant energy transfer to the lattice. This new mechanism of damage (material removal) is accompanied by a qualitative change in the morphology of the interaction site and essentially no collateral damage. High… Expand
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