Conjugated gammadion chiral metamaterial with uniaxial optical activity and negative refractive index
Conjugated gammadion chiral metamaterial with uniaxial optical activity and negative refractive index
We demonstrate numerically and experimentally a conjugated gammadion chiral metamaterial that uniaxially exhibits huge optical activity and circular dichroism, and gives a negative refractive index. This chiral design provides smaller unit cell size and larger chirality compared with other published planar designs. Experiments are performed at GHz frequencies (around 6GHz) …