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- Jun, Young Chul
- Laboratory of Nanophotonics & Metamaterials
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Nanofocusing of light using three-dimensional plasmonic mode conversion
- Author(s)
- An, Shinmo, Lee, Hyun-Shik, Jeong, Yong-Beom, Jun, Young Chul, Lee, Seung Gol, Park, Se-Guen, Lee, El-Hang, Beom-Hoan, O.
- Issued Date
- 2013-11
- 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
- Publisher
- OPTICAL SOC AMER
- ISSN
- 1094-4087
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