Broadband Energy Conversion Between Off-Plane Gaussian Lightwave and In-Plane Surface Plasmon Waves

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51016

Title:	Broadband Energy Conversion Between Off-Plane Gaussian Lightwave and In-Plane Surface Plasmon Waves
Authors:	Chang,SH;Tai,CY
Contributors:	光電科學與工程學系
Keywords:	GUIDES
Date:	2011
Issue Date:	2012-03-27 18:15:36 (UTC+8)
Publisher:	國立中央大學
Abstract:	We report on highly efficient energy conversion between off-plane Gaussian beam and in-plane surface plasmon waves (SPWs). The finite-difference time-domain method was used to analyze the conversion efficiency. In contrast to the single plasmonic rib structure, coupled ribs provide broadband and highly efficient SPW-conversion due to enlarged coupling zone. The simulation shows that Gaussian beam-to-SPWs conversion efficiency can be higher than 50% for the wavelength range from 750 to 950 nm. Compared to in-plane excitation, the present structure is superior in terms of the critical dimension of fabrication, showing promise as an efficient SPW generator in plasmonic nano-circuritry.
Relation:	IEEE PHOTONICS TECHNOLOGY LETTERS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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