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Unpolarized H1 photonic crystal nanocavities fabricated by stretched lattice design
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) SEM image of a H1 PhC cavity with zero stretch factor. FDTD simulation results for H1 cavities with (b) stretched lattice design and (c) elliptical holes. In (b) the wavelengths of the and are shown for (filled symbols), (open symbols), and (half-filled symbols). FDTD simulations of -factor as a function of (d) stretch factor for and (e) ellipticity for .

Image of FIG. 2.
FIG. 2.

(a) Waterfall plot showing spectra from H1 cavities as a function of , which increases from 0.992 in the top spectra to 1.01 in the bottom spectra in steps of 0.002. (b) Closeup of the spectrum for . The light gray line is a double Lorentzian fit to the data revealing .

Image of FIG. 3.
FIG. 3.

(a) Mode splitting and (b) -factors of the and modes averaged across four groups of cavities as a function of the stretch factor. The solid line in (a) shows the FDTD simulation results. (c) Polarization dependent spectra of a H1 cavity with and mode splitting of . The inset shows the polar plot of the unpolarized mode.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Unpolarized H1 photonic crystal nanocavities fabricated by stretched lattice design