[KSCI] Korea Science Citation Index Service

http://dx.doi.org/10.3938/jkps.73.1698

Surface-Plasmon Assisted Transmission Through an Ultrasmall Nanohole of ~ 10 nm with a Bull's Eye Groove

Kim, Geon Woo (Department of Physics, Hallym University)
Ko, Jae-Hyeon (Department of Physics, Hallym University)
Park, Doo Jae (Department of Physics, Hallym University)
Choi, Seong Soo (Research Center for Nanobio Science, Sun Moon University)
Kim, Hyuntae (Department of Physics, Incheon National University)
Choi, Soo Bong (Department of Physics, Incheon National University)

Publication Information

Journal of the Korean Physical Society / v.73, no.11, 2018 , pp. 1698-1702 More about this Journal

Abstract

We simulate the light transmission through an extremely small nanoscale aperture having a 10 nm diameter punctured in a metal film positioned at the center of a plasmonic bull's eye grating. A considerable directive emission of transmitted light with a divergence angle of 5.7 degrees was observed at $10{\mu}m$ from the nanohole opening at the frequency of surface plasmon polariton excitation, an confirmed by measuring the distance dependent transmission amplitude. Observations of the electric field in cross-sectional, near-field, and far-field views near-field enhancement associated with the surface plasmon excitation, and the interference of the electric field light through the nanohole in the near-field region is responsible for such a considerable directive emission.

Keywords

Plasmons on surface and interface; Optical properties of nanostructures; Optical diffraction;

Citations & Related Records

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