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(a) Electric field magnitude of the -dipole mode of a modified S1 defect cavity in the center of the slab and (c) in cross section for SRN, Si/SRN, and Si/SRN/Si membrane designs. (b) Scanning electron microscope image of the fabricated photonic crystal cavity.
Room-temperature photoluminescence spectra from PC cavities with varying hole radii which span the Er spectrum, and the unprocessed wafer (bulk) emission shown at 10 times for clarity.
Pump power dependence of a PC resonance. The solid lines are Lorentzian fits.
Resonant wavelength, cavity quality factor, and PL intensity dependence on pump power. The intensities are scaled for easier comparison.
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