Abstract
A new condition for characterizing isotropic materials with negative phase velocity was derived. The equivalence between this condition and its predecessors was also studied. A linear isotropic dielectric-magnetic medium characterized by complex-valued relative permittivity and relative permeability scalars was also considered. The wave equation gives the square of the complex-valued refractive index.
Original language | English (US) |
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Pages (from-to) | 315-316 |
Number of pages | 2 |
Journal | Microwave and Optical Technology Letters |
Volume | 41 |
Issue number | 4 |
DOIs | |
State | Published - May 20 2004 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering