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A broadband terahertz ultrathin multi-focus lens

Ultrathin transmission metasurface devices are designed on the basis of the Yang-Gu amplitude-phase retrieval algorithm for focusing the terahertz (THz) radiation into four or nine spots with focal spacing of 2 or 3 mm at a frequency of 0.8 THz. The focal properties are experimentally investigated i...

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Detalles Bibliográficos
Autores principales: He, Jingwen, Ye, Jiasheng, Wang, Xinke, Kan, Qiang, Zhang, Yan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4921809/
https://www.ncbi.nlm.nih.gov/pubmed/27346430
http://dx.doi.org/10.1038/srep28800