Goos-H$\ddot{a}$nchen shift of normally incident beam on magneto-optical meta-grating
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866908535900602368 |
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| author | Luo, Ma |
| author_facet | Luo, Ma |
| contents | Goos-H$\ddot{a}$nchen shift of normally incident optical beam to meta-grating consisted of magneto-optical material are studied. The meta-grating is consisted of compound grating of magneto-optical rod on top of a dielectric slab, which induces zone-folding quasi-bound states in the continuum at the $Γ$ point with non-zero group velocity. By applying stationary-phase theory, the Goos-H$\ddot{a}$nchen shift of normally incident quasi-plane wave are found to be enhanced at the reflection peak. Simulations of normally incident Gaussian beam with finite beam width show that the Goos-H$\ddot{a}$nchen shift is dependent on the beam width. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_10374 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Goos-H$\ddot{a}$nchen shift of normally incident beam on magneto-optical meta-grating Luo, Ma Optics Goos-H$\ddot{a}$nchen shift of normally incident optical beam to meta-grating consisted of magneto-optical material are studied. The meta-grating is consisted of compound grating of magneto-optical rod on top of a dielectric slab, which induces zone-folding quasi-bound states in the continuum at the $Γ$ point with non-zero group velocity. By applying stationary-phase theory, the Goos-H$\ddot{a}$nchen shift of normally incident quasi-plane wave are found to be enhanced at the reflection peak. Simulations of normally incident Gaussian beam with finite beam width show that the Goos-H$\ddot{a}$nchen shift is dependent on the beam width. |
| title | Goos-H$\ddot{a}$nchen shift of normally incident beam on magneto-optical meta-grating |
| topic | Optics |
| url | https://arxiv.org/abs/2509.10374 |