Comment II on ``Resonant and antiresonant frequency dependence of the effective parameters of metamaterials''

Details Comment II on ``Resonant and antiresonant frequency dependence of the effective parameters of metamaterials'' Comment II on ``Resonant and antiresonant frequency dependence of the effective parameters of metamaterials''

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phrve..70d8602e&link_type=abstract

Physical Review E, vol. 70, Issue 4, id. 048602

Statistics

Computation

29

Electromagnetic Wave Propagation, Radiowave Propagation, Photonic Bandgap Materials, Collective Excitations

Scientific paper

In a recent paper,

Koshny, Markos, Smith, and Soukoulis [Phys. Rev E 68, 065602 (2003)]

report that their computations show that the product of imaginary parts of electric permittivity and magnetic permeability in a passive media is negative. They also criticize a well-known theorem that both imaginary parts are positive as a result of the second law of thermodynamics. I argue that this criticism has no ground and that computational evidence may result from inadequate introduction of the very concept of ɛ (ω) and μ (ω) in a photonic crystal.

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