High-efficiency generation of far-field spin-polarized wavefronts via designer surface wave metasurfaces
文献类型：期刊论文
| 作者 | W. K. Pan; Z. Wang; Y. Z. Chen; S. Q. Li; X. Y. Zheng; X. Z. Tian; C. Chen; N. X. Xu; Q. He; L. Zhou and S. L. Sun |
| 刊名 | Nanophotonics
 |
| 出版日期 | 2022 |
| 卷号 | 11期号:9页码:2025-2036 |
| ISSN号 | 2192-8606 |
| DOI | 10.1515/nanoph-2022-0006 |
| 英文摘要 | Achieving a pre-designed scattering pattern from an ultra-compact platform is highly desired for on-chip integration optics, but conventional techniques suffer from the limitations of bulky size, wavelength-scale modulation and low efficiency. Here, we propose a new strategy to efficiently generate arbitrary spin-polarized scattering far-field patterns from surface-wave (SW) excitations on a designer Pancharatnam-Berry (PB) metasurface. We find that a PB meta-atom serves as a subwavelength scatter to decouple impinging SW to a spin-polarized propagating wave (PW) with tailored amplitude and phase, and thus interference among PWs generated by scatterings at different PB meta-atoms can generate a tailored far-field pattern. As a proof of concept, we design and fabricate a series of PB metasurfaces in the microwave regime and experimentally demonstrate that they can generate desired radiation patterns within a broad frequency band, including unidirectional radiation, line/point focusing, vortex beam and hologram. These findings may stimulate important applications in on-chip integrated photonics. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/66713]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | W. K. Pan,Z. Wang,Y. Z. Chen,et al. High-efficiency generation of far-field spin-polarized wavefronts via designer surface wave metasurfaces[J]. Nanophotonics,2022,11(9):2025-2036. |
| APA | W. K. Pan.,Z. Wang.,Y. Z. Chen.,S. Q. Li.,X. Y. Zheng.,...&L. Zhou and S. L. Sun.(2022).High-efficiency generation of far-field spin-polarized wavefronts via designer surface wave metasurfaces.Nanophotonics,11(9),2025-2036. |
| MLA | W. K. Pan,et al."High-efficiency generation of far-field spin-polarized wavefronts via designer surface wave metasurfaces".Nanophotonics 11.9(2022):2025-2036. |
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