Out of plane mode conversion and manipulation of surface plasmon polariton waves

M. Sathish Kumar; Xianji Piao; Sukmo Koo; Sunkyu Yu; Namkyoo Park

doi:10.1364/OE.18.008800

Out of plane mode conversion and manipulation of surface plasmon polariton waves

M. Sathish Kumar, Xianji Piao, Sukmo Koo, Sunkyu Yu, Namkyoo Park

School of Electrical and Computer Engineering

Seoul National University

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

33 Scopus citations

Abstract

We propose a rigorous design method of structured gratings for out of plane mode conversion, line focusing and manipulation of Surface Plasmon Polariton (SPP) waves. Employing a blazed grating to incorporate the directionality of SPP launch, and at the same time controlling grating depth and chirp to account for the radiation loss and diffraction angle, it was possible to achieve high efficiency and flexible SPP to freespace mode conversion. Devices with advanced functionalities, such as balanced SPP power splitter, and SPP wavelength demultiplexer are demonstrated with over 75% of power efficiencies at reasonable working distances of less than several wavelengths.

Original language	English
Pages (from-to)	8800-8805
Number of pages	6
Journal	Optics Express
Volume	18
Issue number	9
DOIs	https://doi.org/10.1364/OE.18.008800
State	Published - 26 Apr 2010

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AU - Park, Namkyoo

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Out of plane mode conversion and manipulation of surface plasmon polariton waves

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