Tunable terahertz waves generated by mixing two copropagating infrared beams in GaP.

@article{Shi2005TunableTW,
  title={Tunable terahertz waves generated by mixing two copropagating infrared beams in GaP.},
  author={Wei Shi and Yujie J. Ding},
  journal={Optics letters},
  year={2005},
  volume={30 9},
  pages={1030-2}
}
By mixing two copropagating coherent beams near 1 microm in a zinc blende GaP crystal, we have efficiently generated coherent terahertz (THz) waves. Such efficient conversion is made possible by use of a rest-strahlen band in the THz region to achieve phase matching in an isotropic crystal. A tuning range as wide as 71.1-2830 microm (0.106-4.22 THz) was achieved, whereas the highest output peak power reached 15.6 W at 173 microm. To obtain such a tuning range we continuously tuned the… CONTINUE READING