Mechanisms of three-dimensional structuring of photo-polymers by tightly focussed femtosecond laser pulses.

@article{Malinauskas2010MechanismsOT,
  title={Mechanisms of three-dimensional structuring of photo-polymers by tightly focussed femtosecond laser pulses.},
  author={Mangirdas Malinauskas and Albertas Žukauskas and Gabija Bickauskaite and Roaldas Gadonas and Saulius Juodkazis},
  journal={Optics express},
  year={2010},
  volume={18 10},
  pages={10209-21}
}
Three-dimensional (3D) micro/nano-structuring of photo-resists is systematically studied at the close-to-dielectric- breakdown irradiance. It is demonstrated that avalanche absorption is playing a major part in free electron generation and chemical bond breaking at these conditions. The steps of photo-initiation and chemical bond breaking in propagation of polymerization are altered as compared with photo-polymerization at low-irradiance and one-photon stereo-lithography. The avalanche… CONTINUE READING
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