Giant optical gyrotropy due to electromagnetic coupling
Abstract
The authors demonstrate a chiral photonic metamaterial with chirality provided by electromagnetic coupling between mutually twisted unconnected layers. In the visible and near-IR spectral ranges, the material exhibits polarization rotatory power of up to 2500°/mm and shows relatively low losses and negligible circular dichroism, making it a promising candidate for the development of chiral negative index media.
- Publication:
-
Applied Physics Letters
- Pub Date:
- May 2007
- DOI:
- 10.1063/1.2745203
- Bibcode:
- 2007ApPhL..90v3113P
- Keywords:
-
- 42.70.-a;
- 78.20.Ek;
- 78.20.Fm;
- 78.20.Ci;
- Optical materials;
- Optical activity;
- Birefringence;
- Optical constants