Nano Lett. 2015 Sep 09;15(9):5764-9. doi: 10.1021/acs.nanolett.5b01719. Epub 2015 Aug 27.
Nano letters
Hikaru Saito, Naoki Yamamoto
PMID: 26301432 DOI: 10.1021/acs.nanolett.5b01719
Surface plasmon-polaritons (SPPs) localized inside a plasmonic crystal (PlC) cavity are probed by STEM-CL technique to characterize the influence of the surface shape parameters on the cavity modes. The results elucidate the formation mechanism of the cavity mode in terms of the symmetry and quality factor, which provide a clear design guide for the PlC cavity to control the coupling between SPPs and photons in plasmonic devices and future integrated circuits.
Keywords: Surface plasmon−polariton; cathodoluminescence; cavity; plasmonic bandgap; plasmonic crystal; scanning transmission electron microscopy