Nanofocusing of light using three-dimensional plasmonic mode conversion

Title
Nanofocusing of light using three-dimensional plasmonic mode conversion
Authors
이승걸; 박세근; 오범환; 전영철
Issue Date
2013
Publisher
OPTICS EXPRESS
Series/Report no.
OPTICS EXPRESS ; Vol21 no.23 Startpage 27816 Endpage 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 Ez-type odd mode energy into Ey-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.
URI
http://dspace.inha.ac.kr/handle/10505/33460
ISSN
1094-4087
Appears in Collections:
College of Engineering(공과대학) > Information and Communication Engineering (정보통신공학) > Journal Papers, Reports(정보통신공학 논문, 보고서)
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