Abstract
Symmetry and reciprocity constraints on the polarization state of a field diffracted by gratings of quasi-planar particles are considered. It is shown that the optical activity effects observed recently in arrays of quasi-planar plasmonic particles on a dielectric substrate are due to the reflection of the higher spatial harmonics produced by the grating at the air-dielectric slab interface.
| Original language | English |
|---|---|
| Article number | 074004 |
| Journal | Journal of Optics A: Pure and Applied Optics |
| Volume | 11 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2009 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- Chirality
- Gammadion
- Optical activity
- Planar array
- Reciprocity
- Symmetry
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