Velocity matching by pulse front tilting for large area THz-pulse generation.

@article{Hebling2002VelocityMB,
  title={Velocity matching by pulse front tilting for large area THz-pulse generation.},
  author={J'anos Hebling and G{\'a}bor Alm{\'a}si and Ida Zs. Kozma and Jurgen F. W. Kuhl},
  journal={Optics express},
  year={2002},
  volume={10 21},
  pages={
          1161-6
        }
}
We propose a generally applicable velocity matching method for THz-pulse generation by optical rectification in the range below the phonon frequency of the nonlinear material. Velocity matching is based on pulse front tilting of the ultrashort excitation pulse and is able to produce a large area THz beam. Tuning of the THz radiation by changing the tilt angle is experimentally demonstrated for a narrow line in the range between 0.8- 0.97 times the phonon frequency. According to model… CONTINUE READING

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