Journal
OPTICAL MATERIALS EXPRESS
Volume 7, Issue 2, Pages 433-443Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.7.000433
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Funding
- National Natural Science Foundation of China [61405039, 61475037]
- Science and Technology Planning Projects of Guangdong Province, China [2016A020223013]
- Natural Science Foundation of Guangdong Province, China [2014A030310300]
- State Key Lab of Optical Technologies for Micro-Engineering and Nano-Fabrication of China
- Foundation for Distinguished Young Talents in Higher Education of Guangdong, China [2014KQNCX066]
- Research Fund of Guangdong University of Technology [16ZK0041, 13ZK0387]
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An end-coupled composite-slot-cavity resonator (CSCR) is proposed based on the subwavelength metal-insulator-metal (MIM) waveguides. When compared with the perfect slot cavity, which acts as a Fabry-Perot resonator, plasmonic-induced absorption effect is achieved in the CSCR system. Single or dual absorption windows will arise at the former transmission peaks by arranging the position of vertical-slot cavity in the CSCR. According to the analyses on the phase responses, abnormal dispersions will be achieved inside the windows. Therefore, one can manipulate the fast-light applications in the nano-scale integrated circuits. Furthermore, based on the same interference effect, plasmonic-induced transparency response with normal dispersion is also obtained by changing the end-coupled CSCR system to a side-coupled one. The performances of the proposed structure are analyzed and investigated using the coupled mode theory and the finite-difference time-domain method, respectively. (C) 2017 Optical Society of America
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