Hybrid photonic-plasmonic crystal nanocavities.
basic_science · Level V
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- Record sourced from PubMed, PMID 21384850.
- Also identified by DOI 10.1021/nn1033482.
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Abstract
We propose a hybrid optical nanocavity consisting of photonic crystals coupled to a metal surface with a nanoscale air gap between. The hybridization of photonic crystal modes and surface plasmons across the gap forms hybrid cavity modes, which are highly confined in the low-loss air gap region. Deep subwavelength mode volume and high quality factor are demonstrated at telecommunication wavelength, resulting in an extremely large Q/V(m) ratio of 60,000 λ(-3). This new type of high-Q/V(m) broad-band hybrid nanocavity opens up opportunities for various applications in enhanced light-matter interactions.