Table 1 Comparison of optical properties of volume plasmon, fishnet metamaterials, photonic doping, and DCZIMs
From: Dirac-like cone-based electromagnetic zero-index metamaterials
Volume plasmon | Fishnet | Photonic dopinga | DCZIM | |
|---|---|---|---|---|
ε and μ |
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Dispersion diagram |
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Wave property | ω ≤ ωp: longitudinal, ω > ωp: transverse | Transverse | Transverse | Transverse |
Light-matter interaction | ω ≤ ωp: no interaction, ω>ωp: interaction | Interaction | Interaction | Couple with photon to form zero-index modes |
Excitation | ω = ωp: uniform electric field, ω>ωp: transverse wave | Transverse wave | Transverse wave | Transverse wave |
Propagation length | ω ≤ ωp: no propagation, ω > ωp: short | Short | Short | Short |
Loss | Ohmic loss | Ohmic loss | Ohmic loss | Radiation loss |
Homogeneity | Continuous zero index over a volume | Macroscopic zero index | Macroscopic zero index | Macroscopic zero index |
References |
