10(-10) temporal contrast for femtosecond ultraintense lasers by cross-polarized wave generation.

  title={10(-10) temporal contrast for femtosecond ultraintense lasers by cross-polarized wave generation.},
  author={Aur{\'e}lie Jullien and Olivier Albert and F. Burgy and Guy Hamoniaux and J. P. Rousseau and J-P. Chambaret and Fr{\'e}d{\'e}rika Aug{\'e}-Rochereau and Gilles Ch{\'e}riaux and Jean Etchepare and Nikolay Minkovski and Solomon M. Saltiel},
  journal={Optics letters},
  volume={30 8},
We take advantage of nonlinear properties associated with chi(3) tensor elements in BaF2 cubic crystal to improve the temporal contrast of femtosecond laser pulses. The technique presented is based on cross-polarized wave (XPW) generation. We have obtained a transmission efficiency of 10% and 10(-10) contrast with an input pulse in the millijoule range. This filter does not affect the spectral shape or the phase of the cleaned pulse. It also acts as an efficient spatial filter. In this method… Expand

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