Visible-broadband Localized Vector Vortex Beam Generator with a Multi-structure-composited Meta-surface

We demonstrate a vortex beam generator meta-surface that consists of silver structures and graphene layers. The miniature material is just a few microns in size and the working part is only a few hundred nanometers thick. With the incidence of the linearly polarized beam, the meta-surface generates...

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Bibliographic Details
Main Authors: Zhuo Yang, Dengfeng Kuang
Format: Article
Language:English
Published: MDPI AG 2019-01-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/9/2/166