3D microwave photonic crystals: Novel fabrication and structures

The history of the early years of metamaterials in USA and UK defense agencies

“…In parallel, a MoD basic research project on photonic crystals (electromagnetic bandgap structures) was instigated following the publication by Eli Yablonovich [11]. This work looked at novel additive manufacturing approaches to realizing microwave bandgap structures [12]; revealing research observations like 'where is all the energy going? The energy is remaining in the material for a long timeK', the answers to which became clearer following the published negative refraction experiments [13].…”

“…This work looked at novel additive manufacturing approaches to realizing microwave bandgap structures [12]; revealing research observations like 'where is all the energy going? The energy is remaining in the material for a long timeK', the answers to which became clearer following the published negative refraction experiments [13].…”

Finite-Difference Time-Domain Study of Guided Modes in Nano-Plasmonic Waveguides

“…efficient absorbers and electrically small receiving antennas at microwave frequencies. Recently composite materials containing randomly distributed electrically conductive material and non-electrically conductive material have been designed [17]. They are noted to exhibit plasma-like responses at frequencies well below plasma frequencies of the bulk material.…”