Combined shape and topology optimization yields manufacturable InP photonic crystal cavities with theoretical mode volumes below 0.1 (λ/2n_air)^3, and fabricated devices show reproducible resonances and hints of coupling to colloidal quantum dots.
Trapping and delaying photons for one nanosecond in an ultrasmall high-Q photonic-crystal nanocavity,
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Fabrication and characterization of shape- and topology-optimized optical cavities with deep sub-wavelength confinement for interfacing with colloidal quantum dots
Combined shape and topology optimization yields manufacturable InP photonic crystal cavities with theoretical mode volumes below 0.1 (λ/2n_air)^3, and fabricated devices show reproducible resonances and hints of coupling to colloidal quantum dots.