Abstract
Observation of a spin symmetry breaking effect in plasmonic nanoscale structures due to spin-orbit interaction is presented. We demonstrate a nanoplasmonic structure which exhibits a crucial role of an angular momentum (AM) selection rule in a light-surface plasmon scattering process. In our experiment, the intrinsic AM (spin) of the incident radiation is coupled to the extrinsic momentum (orbital AM) of the surface plasmons via spin-orbit interaction. Due to this effect, we achieved a spin-controlled enhanced transmission through a coaxial nanoaperture.
| Original language | English |
|---|---|
| Pages (from-to) | 3016-3019 |
| Number of pages | 4 |
| Journal | Nano Letters |
| Volume | 9 |
| Issue number | 8 |
| DOIs | |
| State | Published - 12 Aug 2009 |
| Externally published | Yes |