Electromagnetic energy density in a single-resonance chiral metamaterial

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/51027

Title:	Electromagnetic energy density in a single-resonance chiral metamaterial
Authors:	Luan,PG;Wang,YT;Zhang,SA;Zhang,XA
Contributors:	光電科學與工程學系
Date:	2011
Issue Date:	2012-03-27 18:16:00 (UTC+8)
Publisher:	國立中央大學
Abstract:	We derive the electromagnetic energy density in a chiral metamaterial consisting of uncoupled single-resonance helical resonators. Both the lossless and absorptive cases are studied, and the energy density is shown to be positively definite. The key relation making the derivation successful is the proportionality between the magnetization and the rate of change of the electric polarization of the medium. The same time-domain formulation of energy density also applies to the bianisotropic medium proposed by Zhang et al. [Phys. Rev. Lett. 102, 023901 (2009)]. This work may provide insights for studying time-dependent phenomena in metamaterials. (C) 2011 Optical Society of America
Relation:	OPTICS LETTERS
Appears in Collections:	[Department of Optics and Photonics] journal & Dissertation

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