| Autor: |
Lan Ke, Yunyun Yang, Mingmin Zhu, Haomiao Zhou, Yi Chen, Ying Tian, Chenxia Li, Bo Fang, Zhi Hong, Xufeng Jing |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
Microsystems & Nanoengineering, Vol 10, Iss 1, Pp 1-17 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2055-7434 |
| DOI: |
10.1038/s41378-024-00781-7 |
| Popis: |
Abstract Vector beams have attracted widespread attention because of their unique optical properties; in particular, their combination with tight focusing can produce many interesting phenomena. The rise of 3D printing technology provides more possibilities for exploration. In this work, a cascading method involving a metamaterial and a metalens is used to generate a tightly focused field of vector beams in the terahertz band, which is prepared via 3D printing. As a proof-of-concept demonstration, a series of metamaterial modules capable of generating states of different orbital angular momentum are proposed by cascading with a metalens. The experimental results are in good agreement with the simulation results, fully verifying the feasibility of the scheme. The proposed design and fabrication strategy provides a new idea for the tight focusing of terahertz vector beams. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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