Electromagnetic energy in a dispersive metamaterial
Boardman, AD and Marinov, K 2006, 'Electromagnetic energy in a dispersive metamaterial' , Physical Review B, 73 (16) , p. 165110.
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An expression for the electromagnetic field energy density in a dispersive lossy left-handed metamaterial, consisting of an array of split-ring resonators and an array of wires, is derived. An electromagnetic field with general time dependence is considered. The outcome is compared with previously published results. In the absence of losses, agreement with the general result for the energy density in a dispersive material is obtained. The formulae are verified using the finite-difference time-domain numerical method. The applicability of two commonly used permeability models to the problem of calculating the energy stored in an array of split-ring resonators is discussed.
|Themes:||Subjects / Themes > Q Science > QC Physics
Subjects outside of the University Themes
|Schools:||Schools > School of Computing, Science and Engineering
Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
|Journal or Publication Title:||Physical Review B|
|Publisher:||American Physical Society|
|Depositing User:||H Kenna|
|Date Deposited:||23 Aug 2007 10:58|
|Last Modified:||01 Dec 2015 00:00|
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