Analyze and calculation of coupling coefficient based on evanescence field for plasmonic directional coupler structure |
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Authors: | Mohsen Olyaee Mohammad Bagher Tavakoli Abbas Mokhtari |
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Affiliation: | 1.Department of Engineering, Arak Branch,Islamic Azad University,Arak,Iran |
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Abstract: | We obtain the calculation of coupling coefficient of plasmonic directional coupler made up of two monolayer waveguides separated in the range of 200 nm for TM mode and we assume each waveguides acts as a perturbation to other waveguide but does not affect the waveguide mode. We simulation the transfer distance respect to normalized frequency in two directions, x and z, values transfer distance a limitation of a bandwidth is suitable for designing of integrated optical circuits and construction of couplers and switches. |
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