Negative-Index Metamaterial
unseel.com · n = −√(εμ) · Split-rings · Backward waves
index n +1.50
ε_r +2.25 · μ_r +1.0
refraction normal
state standby
Incident / energy ray
Metamaterial slab
Split-ring meta-atoms
Backward phase crests
Unseel.com · Metamaterials