General recipe for designing photonic crystal cavities.

  title={General recipe for designing photonic crystal cavities.},
  author={Dirk Englund and Ilya Fushman and Jelena Vuckovic},
  journal={Optics express},
  volume={13 16},
We describe a general recipe for designing high-quality factor (Q) photonic crystal cavities with small mode volumes. We first derive a simple expression for out-of-plane losses in terms of the k-space distribution of the cavity mode. Using this, we select a field that will result in a high Q. We then derive an analytical relation between the cavity field and the dielectric constant along a high symmetry direction, and use it to confine our desired mode. By employing this inverse problem… CONTINUE READING
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