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Jun, Young Chul
Laboratory of Nanophotonics & Metamaterials (NanoMeta)
Research Interests
  • Nanophotonics, plasmonics, metamaterials, 4D printing, programmable matter, smart materials

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Nanofocusing of light using three-dimensional plasmonic mode conversion

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Title
Nanofocusing of light using three-dimensional plasmonic mode conversion
Author
An, ShinmoLee, Hyun-ShikJeong, Yong-BeomJun, Young ChulLee, Seung GolPark, Se-GuenLee, El-HangBeom-Hoan, O.
Keywords
NANOSTRIP WAVE-GUIDES; GAP; PROPAGATION; POLARITONS; DESIGN; SCALE; WEDGE
Issue Date
2013-11
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v.21, no.23, pp.27816 - 27825
Abstract
Efficient nanofocusing of light into a gap plasmon waveguide using three-dimensional mode conversion in a strip plasmonic directional coupler is proposed. Unlike conventional nanofocusing using tapering structures, a plasmonic directional coupler converts E-z-type odd mode energy into E-y-type gap plasmon mode by controlling phase mismatch and gap spacing. The simulation result shows the maximum electric field intensity increases up to 58.1 times the input intensity, and 17.3% of the light is focused on the nano gap region. (C) 2013 Optical Society of Americ
URI
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DOI
10.1364/OE.21.027816
ISSN
1094-4087
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