Journal
OPTIK
Volume 171, Issue -, Pages 58-64Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2018.03.135
Keywords
Surface plasmon polariton; Slow light; Plasmonic Fano resonance; Nanosensing
Categories
Funding
- Yangtze Youth Fund [2016cqn55]
- Yangtze Fund for Youth Teams of Science and Technology Innovation [2015cqt03]
- Doctoral Scientific Research Startup Foundation of Yangtze University [801080010127]
- National Natural Science Foundation of China [11547007]
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Plasmonic Fano resonance effect is investigated in a novel metal-insulator-metal waveguide structure, which consists of a stub MIM waveguide and a triangle shaped resonator. The transmission properties of the proposed plasmonic waveguide structure are numerically investigated by the two dimensional finite-difference-time-domain (FDTD). The coupling between the stub resonator and the triangle resonator results in a Fano resonance. The transmission characteristics and the slow light effect, sensing performance of the proposed plasmonic structure are studies in detail. By proper design, the sensitivity and the optical delay time of the proposed structure can be up to 800 nm/RIU and 0.053 ps. The above characteristics indicate the proposed plasmonic structure may have application in slow light device, plasmonic filter, all optical switch and nanosensing. (C) 2018 Elsevier GmbH. All rights reserved.
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