Active Negative Index Metamaterial Powered by an Electron Beam

Abstract

A novel active negative index metamaterial that derives its gain from an electron beam is intro- duced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a periodic array of holes shaped as complementary split-ring resonators. It is shown that this structure supports a negative-index transverse magnetic electromagnetic mode that can resonantly interact with a relativistic electron beam. Such metamaterial can be used as a coherent radiation source or a particle accelerator.

5 pages, 4 figures

References in corpus (3)

• Self-consistent calculation of metamaterials with gain
• Complex k band diagrams of 3D metamaterial/photonic crystals
• Electron Beam Instability in Left-Handed Media

Cited by in corpus (2)

• A New Amplification Regime for Traveling Wave Tubes with Third Order Modal Degeneracy
• Transition radiation in photonic topological crystals: quasi-resonant excitation of robust edge states by a moving charge