Metasurfaces: Near‐Field Characterization of Higher‐Order Topological Photonic States at Optical Frequencies (Adv. Mater. 18/2021)
Metasurfaces: Near‐Field Characterization of Higher‐Order Topological Photonic States at Optical Frequencies (Adv. Mater. 18/2021)
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超表面：光学频率下高阶拓扑光子态的近场表征（Adv. Mater. 18/2021）
DOI：
10.1002/adma.202170135
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发表时间：
2021
影响因子：
29.4
通讯作者：
Khanikaev, Alexander B.
中科院分区：
文献类型：
--
作者：
Vakulenko, Anton;Kiriushechkina, Svetlana;Wang, Mingsong;Li, Mengyao;Zhirihin, Dmitry;Ni, Xiang;Guddala, Sriram;Korobkin, Dmitry;Alù, Andrea;Khanikaev, Alexander B.
在第2004376号文章中，安德烈·阿尔坎尼，亚历山大B。Khanikaev及其同事应用近场技术来研究高阶拓扑光子超颖表面。他们表明，近场分布揭示了光学模式的拓扑性质（描绘为环面）。拓扑表现在Wannier中心的位移，引起拓扑偶极极化和光学近场中观察到的拓扑边界态的出现。
In article number 2004376 Andrea Alù, Alexander B. Khanikaev, and co-workers apply a near-field technique to investigate a higher-order topological photonic metasurface. They show that the near-field profiles reveal the topological nature of the optical modes (depicted as a torus). Topology manifests in the displacement of the Wannier center, giving rise to the topological dipole polarization and emergence of the topological boundary states observed in the optical near-field.