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Phys. Rev. E 70, 035602(R) (2004) [4 pages]

Metrics for negative-refractive-index materials

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K. J. Webb1,2,*, M. Yang1, D. W. Ward2, and K. A. Nelson2
1School of Electrical and Computer Engineering, Purdue University, 465 Northwestern Avenue, West Lafayette, Indiana 47907-2035, USA
2Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139-4307, USA

Received 31 March 2004; published 27 September 2004

The importance of loss in the field solution for left-handed media, and in particular, the impact on what would otherwise be a purely evanescent field, is addressed. Using an equivalent electric current source, field solutions are constructed in semi-infinite and finite thickness left-handed media. In the slab case, field growth and power dissipation metrics with uniform amplitude and uniform power excitation, respectively, provide a means to evaluate the potential of a left-handed material lens. Power dissipation suggests that field growth will be adversely impacted.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevE.70.035602
DOI:
10.1103/PhysRevE.70.035602
PACS:
42.30.Va, 41.20.Jb, 42.25.Bs, 78.20.Ci

*Electronic address: webb@purdue.edu

 
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