Corner cutting connects chiral colorimetry to net electric flux in lossless all-dielectric metasurfaces
Fuente:
arXiv
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866913975244947456 |
|---|---|
| author | Haddadin, Zaid Nguyen, Anna My Poulikakos, Lisa V. |
| author_facet | Haddadin, Zaid Nguyen, Anna My Poulikakos, Lisa V. |
| contents | All-dielectric metasurfaces can produce structural colors, but the most advantageous design criteria are still being investigated. This work numerically studies how the two-dimensional shape of nanoparticles affects the colorimetric response under circularly polarized light (CPL) to develop a sensor distinguishing CPL orientations. Using lossless dielectric materials (silicon nitride on silicon dioxide), we achieve far-field dichroism by modifying oblong nanoparticles into L-shaped structures through corner cuts. This design suppresses one electric dipole under CPL illumination, leading to differential colorimetric responses. We link these responses to a decoupling effect in the near-field net electric flux. Our findings provide design guidelines for all-dielectric, lossless colorimetric sensors of chiral light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_05984 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Corner cutting connects chiral colorimetry to net electric flux in lossless all-dielectric metasurfaces Haddadin, Zaid Nguyen, Anna My Poulikakos, Lisa V. Optics Applied Physics All-dielectric metasurfaces can produce structural colors, but the most advantageous design criteria are still being investigated. This work numerically studies how the two-dimensional shape of nanoparticles affects the colorimetric response under circularly polarized light (CPL) to develop a sensor distinguishing CPL orientations. Using lossless dielectric materials (silicon nitride on silicon dioxide), we achieve far-field dichroism by modifying oblong nanoparticles into L-shaped structures through corner cuts. This design suppresses one electric dipole under CPL illumination, leading to differential colorimetric responses. We link these responses to a decoupling effect in the near-field net electric flux. Our findings provide design guidelines for all-dielectric, lossless colorimetric sensors of chiral light. |
| title | Corner cutting connects chiral colorimetry to net electric flux in lossless all-dielectric metasurfaces |
| topic | Optics Applied Physics |
| url | https://arxiv.org/abs/2411.05984 |