Reflectionless compact plasmonic waveguide mode converter by using a mode-selective cavity

Joonsoo Kim; Seung Yeol Lee; Hyeonsoo Park; Kyookeun Lee; Byoungho Lee

doi:10.1364/OE.23.009004

Reflectionless compact plasmonic waveguide mode converter by using a mode-selective cavity

Joonsoo Kim, Seung Yeol Lee, Hyeonsoo Park, Kyookeun Lee, Byoungho Lee

Seoul National University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A compact transmissive plasmonic waveguide mode converter which aims for the elimination of reflection and transmission of unconverted mode is proposed. The proposed scheme exploits a cavity formed by mode selective mirrors, which only allows two output modes: the transmission of the target mode and the reflection of the input mode. By appropriately tuning cavity lengths, the reflection of the input mode can also be suppressed to near zero by destructive interference, thereby all the residual outgoing modes are suppressed. The proposed device might be useful in the design of integrated photonic system since it relaxes the problem of unwanted reflection.

Original language	English
Pages (from-to)	9004-9013
Number of pages	10
Journal	Optics Express
Volume	23
Issue number	7
DOIs	https://doi.org/10.1364/OE.23.009004
State	Published - 6 Apr 2015

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AB - A compact transmissive plasmonic waveguide mode converter which aims for the elimination of reflection and transmission of unconverted mode is proposed. The proposed scheme exploits a cavity formed by mode selective mirrors, which only allows two output modes: the transmission of the target mode and the reflection of the input mode. By appropriately tuning cavity lengths, the reflection of the input mode can also be suppressed to near zero by destructive interference, thereby all the residual outgoing modes are suppressed. The proposed device might be useful in the design of integrated photonic system since it relaxes the problem of unwanted reflection.

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Reflectionless compact plasmonic waveguide mode converter by using a mode-selective cavity

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