Λ-Type and V-Type Plasmon-Induced Transparency in Plasmonic Waveguide Systems
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We present bright-dark-bright mode, dark-bright-bright mode, and bright-dark-bright-dark mode plasmonic waveguide structures. And the typical plasmon-induced transparency (PIT) spectra are observed in our proposed structure. In addition, we firstly make an attempt to introduce V-type PIT and Λ-type PIT to describe transmission spectra in bright-dark-bright mode, dark-bright-bright mode plasmonic waveguide systems, respectively. Interestingly, we can see the V-type PIT and Λ-type PIT in bright-dark-bright-dark mode plasmonic waveguide structures. The proposed model and findings may provide guidance for fundamental research of the plasmonic devices applications.
KeywordsPlasmonics Waveguides Subwavelength structures
This work was projected by the National Natural Science Foundation of China under Grant No. 61379026 and supported by the Doctoral research program of Yan’an University Grant No. YDBK2017-29.
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