Magnetically Controllable Multimode Interference in Topological Photonic Crystals
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910300112945152 |
|---|---|
| author | Tang, Weiyuan Wang, Mudi Ma, Shaojie Chan, C. T. Zhang, Shuang |
| author_facet | Tang, Weiyuan Wang, Mudi Ma, Shaojie Chan, C. T. Zhang, Shuang |
| contents | Topological photonic insulators show promise for applications in compact integrated photonic circuits due to their ability to transport light robustly through sharp bendings. The number of topological edge states relies on the difference between the bulk Chern numbers across the boundary, as dictated by the bulk edge correspondence. The interference among multiple topological edge modes in topological photonics systems may allow for controllable functionalities that are particularly desirable for constructing reconfigurable photonic devices. In this work, we demonstrate magnetically controllable multimode interference based on gyromagnetic topological photonic insulators that support two unidirectional edge modes with different dispersions. We successfully achieve controllable power splitting in experiments by engineering multimode interference with the magnetic field intensity or the frequency of wave. Our work demonstrates that manipulating the interference among multiple chiral edge modes can facilitate the advancement of highly efficient and adaptable photonic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_11170 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Magnetically Controllable Multimode Interference in Topological Photonic Crystals Tang, Weiyuan Wang, Mudi Ma, Shaojie Chan, C. T. Zhang, Shuang Applied Physics Optics Topological photonic insulators show promise for applications in compact integrated photonic circuits due to their ability to transport light robustly through sharp bendings. The number of topological edge states relies on the difference between the bulk Chern numbers across the boundary, as dictated by the bulk edge correspondence. The interference among multiple topological edge modes in topological photonics systems may allow for controllable functionalities that are particularly desirable for constructing reconfigurable photonic devices. In this work, we demonstrate magnetically controllable multimode interference based on gyromagnetic topological photonic insulators that support two unidirectional edge modes with different dispersions. We successfully achieve controllable power splitting in experiments by engineering multimode interference with the magnetic field intensity or the frequency of wave. Our work demonstrates that manipulating the interference among multiple chiral edge modes can facilitate the advancement of highly efficient and adaptable photonic devices. |
| title | Magnetically Controllable Multimode Interference in Topological Photonic Crystals |
| topic | Applied Physics Optics |
| url | https://arxiv.org/abs/2304.11170 |