Electromagnetic energy density in a single-resonance chiral metamaterial

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题名:	Electromagnetic energy density in a single-resonance chiral metamaterial
作者:	Luan,PG;Wang,YT;Zhang,SA;Zhang,XA
贡献者:	光電科學與工程學系
日期:	2011
上传时间:	2012-03-27 18:16:00 (UTC+8)
出版者:	國立中央大學
摘要:	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
關聯:	OPTICS LETTERS
显示于类别:	[光電科學與工程學系] 期刊論文

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