Observation of gapless corner modes in synthetic translation dimensions
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866911782385221632 |
|---|---|
| author | Zhang, Wen-Jin Mo, Hao-Chang Chen, Wen-Jie Chen, Xiao-Dong Dong, Jian-Wen |
| author_facet | Zhang, Wen-Jin Mo, Hao-Chang Chen, Wen-Jie Chen, Xiao-Dong Dong, Jian-Wen |
| contents | The introduction of synthetic dimensions in topological photonic systems enriches the exploration of topological phase of light in higher-dimensional space beyond three-dimensional real-space. Recently, the gapless corner modes of topological photonic crystals under translational deformation have been proposed, but their experimental observation is still absent. Here, we observe the gapless corner modes in a photonic crystal slab under translational deformation. The corner mode exhibits a frequency dependence that can be tuned through the translation of the slab. Importantly, we find that the existence of gapless corner modes is independent of the specific corner configuration. The gapless corner modes are experimentally imaged via the near-field scanning measurement, and validated numerically by full-wave simulations. Our work contributes to the advancement of topological photonics and provides valuable insights into the exploration of gapless corner modes in synthetic dimensions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_02495 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Observation of gapless corner modes in synthetic translation dimensions Zhang, Wen-Jin Mo, Hao-Chang Chen, Wen-Jie Chen, Xiao-Dong Dong, Jian-Wen Applied Physics Optics The introduction of synthetic dimensions in topological photonic systems enriches the exploration of topological phase of light in higher-dimensional space beyond three-dimensional real-space. Recently, the gapless corner modes of topological photonic crystals under translational deformation have been proposed, but their experimental observation is still absent. Here, we observe the gapless corner modes in a photonic crystal slab under translational deformation. The corner mode exhibits a frequency dependence that can be tuned through the translation of the slab. Importantly, we find that the existence of gapless corner modes is independent of the specific corner configuration. The gapless corner modes are experimentally imaged via the near-field scanning measurement, and validated numerically by full-wave simulations. Our work contributes to the advancement of topological photonics and provides valuable insights into the exploration of gapless corner modes in synthetic dimensions. |
| title | Observation of gapless corner modes in synthetic translation dimensions |
| topic | Applied Physics Optics |
| url | https://arxiv.org/abs/2308.02495 |