Impedance-Matching Surface Plasmon Absorber for FDTD Simulations

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50984

Title:	Impedance-Matching Surface Plasmon Absorber for FDTD Simulations
Authors:	Chao,CC;Tu,SH;Wang,CM;Huang,HI;Chen,CC;Chang,JY
Contributors:	光電科學與工程學系
Date:	2010
Issue Date:	2012-03-27 18:14:35 (UTC+8)
Publisher:	國立中央大學
Abstract:	The perfectly matched layer (PML) can be used as an excellent boundary in the finite-difference time-domain method; however, it fails to absorb surface plasmon (SP) wave directly. In order to absorb an incident SP wave at the edge of a metal surface, an impedance-matching layer (IML) is implemented between the metal surface and the PML. A very low SP wave reflectance of -26.54 dB is achieved through the use of an IML with a length of only lambda/3. The IML significantly reduces SP wave reflectance and creates a quasi-infinite regime for the purpose of SP wave propagation on the metal's surface while the acquired simulation area undergoes a slight increase.
Relation:	PLASMONICS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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