Paper
28 August 2015 Plasmonic analog of electromagnetic-induced transparency of asymmetrical slots waveguide
Lin Sun, Jicheng Wang, Baojie Tang, Xiaosai Wang
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Abstract
Electromagnetically induced transparency (EIT) has been proposed numerically in the plasmonic waveguides composed of unsymmetrical slots shaped metal–insulator-metal (MIM) structures. By the transmission line theory and Fabry-Perot model, the formation and evolution mechanisms of Plasmon induced transparency are exactly analyzed. The analysis shows that the peak of EIT-like transmission can be changed easily according to certain rules by adjusting the geometrical parameters of the slot structures, including the coupling distances and slot depths. We can find a new method to design nanoscale optical switch, devices in optical storage and optical computing. It is found that the slow light effects are emerged in the unsymmetrical slot structures. A small group velocity(c/80) can be achieved.
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Lin Sun, Jicheng Wang, Baojie Tang, and Xiaosai Wang "Plasmonic analog of electromagnetic-induced transparency of asymmetrical slots waveguide", Proc. SPIE 9547, Plasmonics: Metallic Nanostructures and Their Optical Properties XIII, 95472F (28 August 2015); https://doi.org/10.1117/12.2185984
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KEYWORDS
Waveguides

Transparency

Plasmonic waveguides

Plasmonics

Slow light

Radio propagation

Wave propagation

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