Wenxia Xu

Sep 2, 2024 | mdpi.com | Chen Cao |Baocheng Yu |Wenxia Xu |Guojun Chen

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Apr 1, 2024 | opg.optica.org | Chunying Guan |Wenjia Li |Wenxia Xu |Yehan Wang |Jinhui Shi

We introduce the concept of polarized vortex Smith–Purcell radiation by the interaction of an electron beam and cascaded metasurfaces. The spin and orbital angular momenta of Smith–Purcell radiation are determined by the cascaded metasurface that consists of a grating and a phase gradient metasurface. The grating converts the electron beam radiation into the desired polarized light, while the phase gradient metasurface generates the vortex light.

Dec 6, 2023 | mdpi.com | Yilin Chen |Yang Mei |Baocheng Yu |Wenxia Xu

All articles published by MDPI are made immediately available worldwide under an open access license. No specialpermission is required to reuse all or part of the article published by MDPI, including figures and tables. Forarticles published under an open access Creative Common CC BY license, any part of the article may be reused withoutpermission provided that the original article is clearly cited. For more information, please refer tohttps://www.mdpi.com/openaccess.