Continuously phase-matched terahertz difference frequency generation in an embedded-waveguide structure supporting only fundamental modes.

@article{Staus2008ContinuouslyPT,
  title={Continuously phase-matched terahertz difference frequency generation in an embedded-waveguide structure supporting only fundamental modes.},
  author={Chad Staus and Thomas F. Kuech and Leon McCaughan},
  journal={Optics express},
  year={2008},
  volume={16 17},
  pages={13296-303}
}
We demonstrate an all-single mode structure which enables continuous phase matching of difference frequency generated THz light from the near-IR. This structure provides a long interaction length by way of well-confined collinear propagation of pumps and product without diffraction, resulting in high conversion efficiency. A LiNbO(3) version of this… CONTINUE READING