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/Vm ratio of 60 000 λ-3. This new type of high-Q/Vm broad-band hybrid nanocavity opens up opportunities for various applications in enhanced light-matter interactions.
| Original language | English |
|---|---|
| Pages (from-to) | 2831-2838 |
| Number of pages | 8 |
| Journal | ACS Nano |
| Volume | 5 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 26 2011 |
Keywords
- hybrid plasmonic mode
- optical nanocavity
- photonic crystal
- surface plasmon polariton
ASJC Scopus subject areas
- Materials Science(all)
- Engineering(all)
- Physics and Astronomy(all)
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Cite this
Yang, X., Ishikawa, A., Yin, X., & Zhang, X. (2011). Hybrid photonic-plasmonic crystal nanocavities. ACS Nano, 5(4), 2831-2838. https://doi.org/10.1021/nn1033482