| Autor: |
Leidong Shi, Lidan Lu, Guang Chen, Yulin Feng, Yanlin He, Guanghui Ren, Jianzhen Ou, Lianqing Zhu |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Photonics, Vol 10, Iss 5, p 489 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2304-6732 |
| DOI: |
10.3390/photonics10050489 |
| Popis: |
Metasurfaces have shown an unprecedented ability to modulate electromagnetic waves at subwavelength scales, especially polarized optical metasurfaces, applied for imaging, navigation and detection. In this work, a kind of efficient all-dielectric diatomic metasurface for polarization and phase changing, consisting of a pair of GaAs nanopillar and nanocube, is proposed. By adjusting the unit cell structural parameters, the polarization state can be controlled and adjusted at the short-wave infrared (SWIR) band (1~3 μm). At the wavelength of 2125 nm, the maximum transmission efficiency, the extinction ratio and the linear polarization degree can reach 93.76%, 40.99 dB and 0.99, respectively. Overall, this all-dielectric diatomic metasurface has broad application potential in extended SWIR polarization detection. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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