Broadband and wide-angle beam deflection enabled by dynamically reconfigurable meta-arrays
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arXiv
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| Hauptverfasser: | , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909857072807936 |
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| author | Sadzi, Koffi-Emmanuel Ndao, Abdoulaye |
| author_facet | Sadzi, Koffi-Emmanuel Ndao, Abdoulaye |
| contents | We present a structurally simple yet functionally ver- satile reflective meta-array composed of phase-change Antimony trisulfide (Sb2S3) nanorods enabling broad- band and wide-angle beam deflection in near-infrared. The device achieves over 80% deflection efficiency over a 1000 nm wide passband, and covering from O-band (1260 nm-1360 nm) to U-band (1565 nm-1625 nm) in the amorphous state. Meanwhile, in its crystalline state, we see a reduction of the efficiency to 40% on average with a maximum passband of 800 nm over the C-band. Moreover, its simple architecture simultaneously en- ables spectral filtering and beam splitting, delivering a compact, multifunctional solution optimized for high power applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_17075 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Broadband and wide-angle beam deflection enabled by dynamically reconfigurable meta-arrays Sadzi, Koffi-Emmanuel Ndao, Abdoulaye Optics We present a structurally simple yet functionally ver- satile reflective meta-array composed of phase-change Antimony trisulfide (Sb2S3) nanorods enabling broad- band and wide-angle beam deflection in near-infrared. The device achieves over 80% deflection efficiency over a 1000 nm wide passband, and covering from O-band (1260 nm-1360 nm) to U-band (1565 nm-1625 nm) in the amorphous state. Meanwhile, in its crystalline state, we see a reduction of the efficiency to 40% on average with a maximum passband of 800 nm over the C-band. Moreover, its simple architecture simultaneously en- ables spectral filtering and beam splitting, delivering a compact, multifunctional solution optimized for high power applications. |
| title | Broadband and wide-angle beam deflection enabled by dynamically reconfigurable meta-arrays |
| topic | Optics |
| url | https://arxiv.org/abs/2510.17075 |