https://researchconnect.buffalo.edu/en/publications/double-layer-fano-resonance-photonic-crystal-filters/
Double-layer Fano resonance photonic crystal filters - SUNY University at Buffalo
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https://researchcollaborations.elsevier.com/en/publications/low-loss-photonic-crystal-and-monolithic-inp-integration-bands-be/
Low-loss photonic-crystal and monolithic InP integration: Bands, bends, lasers, filters -...
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