Spin-orbital angular momentum tomography of a chiral plasmonic lens using leakage radiation microscopy
| Autor: | Aline Pham, Airong Zhao, Aurélien Drezet, Nessim Jebali |
|---|---|
| Přispěvatelé: | Nano-Optique et Forces (NOF ), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Physics
[PHYS]Physics [physics] Angular momentum business.industry Surface plasmon Physics::Optics 02 engineering and technology 021001 nanoscience & nanotechnology Polarization (waves) 01 natural sciences Optical switch Atomic and Molecular Physics and Optics 010309 optics Optics Optical tweezers 0103 physical sciences Microscopy Plasmonic lens 0210 nano-technology business Circular polarization ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Optics Letters Optics Letters, Optical Society of America-OSA Publishing, 2018, 43 (8), pp.1918-1921. ⟨10.1364/OL.43.001918⟩ |
| ISSN: | 0146-9592 1539-4794 |
| DOI: | 10.1364/OL.43.001918⟩ |
| Popis: | Based on the spin-dependent directional coupling of surface plasmons (SPs) by ∧-shaped antennas, ring-shaped structures built with such antennas have potential applications for optical tweezers and optical switch technology. In this Letter, we introduce an optical method for realizing a complete polarization tomography of coupled SP fields by such a chiral-planar structure. We use a far-field optical approach, namely leakage radiation microscopy (LRM), to map the SPs propagation and polarization. Here, we fully analyze the polarization state of the generated SPs inside the vortex lens structure. In addition, we provide a theoretical model which agrees well with the experimental results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|