Use of photonic crystal cavities for temporal differentiation of optical signals.

@article{Kazanskiy2013UseOP,
  title={Use of photonic crystal cavities for temporal differentiation of optical signals.},
  author={Nikolay L. Kazanskiy and Pavel G. Serafimovich and Svetlana N. Khonina},
  journal={Optics letters},
  year={2013},
  volume={38 7},
  pages={1149-51}
}
We show that general-form optical cavities are able to perform the temporal differentiation of optical signals. Analytical relationships to account for the scattering losses for such a cavity's characteristics are deduced on the basis of temporal coupled-mode theory. A compact nanocavity-aided differentiator based on a ridge photonic crystal waveguide is… CONTINUE READING