Abstract
We apply the complex two-dimensional stationary-phase method for problems of electromagnetic waves radiation from the moving modulated sources in dispersive and lossy medium. The explicit formulas for fields generated by a moving source, the Doppler effect, and the retarded time are obtained. We apply the developed approach to numerical study of the Cherenkov radiation in a dispersive medium (Drude model). Our simulations have shown that in double negative dispersive metamaterials, the Cherenkov cone splits in two branches.
| Original language | English |
|---|---|
| Pages (from-to) | 2012-2026 |
| Number of pages | 15 |
| Journal | Mathematical Methods in the Applied Sciences |
| Volume | 38 |
| Issue number | 10 |
| DOIs | |
| State | Published - 15 Jul 2015 |
Keywords
- dispersive and lossy medium
- electromagnetic field
- metamaterial
- two-dimensional stationary-phase method