High Q H1 photonic crystal nanocavities with efficient vertical emission.

  title={High Q H1 photonic crystal nanocavities with efficient vertical emission.},
  author={Hiroyuki Takagi and Yasutomo Ota and Naoto Kumagai and Satomi Ishida and Satoshi Iwamoto and Y. Arakawa},
  journal={Optics express},
  volume={20 27},
We report on newly-designed H1-type photonic crystal (PhC) nanocavities that simultaneously exhibit high Q factors, small mode volumes, and high external coupling efficiencies (η([perpendicular])) of light radiated above the PhC membrane. Dipole modes of the H1 PhC nanocavities, which are doubly-degenerate and orthogonally-polarized in theory, are investigated both by numerical calculations and experiments. Through modifying the sizes and positions of the air-holes near to the defect cavity, a… CONTINUE READING
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