Design of terahertz beam splitter based on surface plasmon resonance transition |
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| Affiliation: | 1.College of Information Science & Electronic Engineering, Zhejiang University, Hangzhou 310027, China;2.Research Center for Terahertz Technology, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | According to the resonance transition between propagating surface plasmon and localized surface plasmon, we demonstrate a design of beam splitter that can split terahertz wave beams in a relatively broad frequency range. The transmission properties of the beam splitter are analyzed utilizing the finite element method. The resonance transition between two kinds of plasmons can be explained by a model of coherent electron cloud displacement. |
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| Keywords: | terahertz surface plasmon splitter resonance transition |
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