Polarisation conversion and optical meron topologies in anisotropic epsilon-near-zero metamaterials
Fuente:
arXiv
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916590146027520 |
|---|---|
| author | Aita, Vittorio Zaleska, Anastasiia Putley, Henry J. Zayats, Anatoly V. |
| author_facet | Aita, Vittorio Zaleska, Anastasiia Putley, Henry J. Zayats, Anatoly V. |
| contents | Plasmonic metamaterials provide a flexible platform for light manipulation and polarisation management, thanks to their engineered optical properties with exotic dispersion regimes. Here, we exploit the enhanced spin-orbit coupling induced by the strong anisotropy of plasmonic nanorod metamaterials to control the polarisation of vector vortex beams and generate complex field structures with meron topology. Modifying the degree of ellipticity of the input polarisation, we show how the observed meron topology can be additionally manipulated. Flexible control of the state of polarisation of vortex beams is important in optical manipulation, communications, metrology and quantum technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2501_18023 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Polarisation conversion and optical meron topologies in anisotropic epsilon-near-zero metamaterials Aita, Vittorio Zaleska, Anastasiia Putley, Henry J. Zayats, Anatoly V. Optics Applied Physics Plasmonic metamaterials provide a flexible platform for light manipulation and polarisation management, thanks to their engineered optical properties with exotic dispersion regimes. Here, we exploit the enhanced spin-orbit coupling induced by the strong anisotropy of plasmonic nanorod metamaterials to control the polarisation of vector vortex beams and generate complex field structures with meron topology. Modifying the degree of ellipticity of the input polarisation, we show how the observed meron topology can be additionally manipulated. Flexible control of the state of polarisation of vortex beams is important in optical manipulation, communications, metrology and quantum technologies. |
| title | Polarisation conversion and optical meron topologies in anisotropic epsilon-near-zero metamaterials |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2501.18023 |