Controlling the light diffraction through a single subwavelength metallic slit via phase gradient

In this work, we show that the concept of phase gradient metasurfaces provides a versatile way to control the diffraction of light through small holes or slits. As an example, we consider a single subwavelength metallic slit surrounded by air grooves of gradient depth that induces the expected phase...

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Bibliographic Details
Main Authors: Songsong Li, Yangyang Fu, Lei Gao, Jian-Hua Jiang, Yadong Xu
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/acd0cc