Sub-Wavelength Focusing in Inhomogeneous Media with a Metasurface Near Field Plate

Sub-Wavelength Focusing in Inhomogeneous Media with a Metasurface Near Field Plate

Overcoming the diffraction limit, which enables focusing much less than the wavelength, requires tailoring the evanescent spectrum of an aperture’s field distribution. We model and simulate a corrugated near field plate, which can generate a sub-wavelength focus in inhomogeneous background...

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Bibliographic Details
Main Authors: Andrew C. Strikwerda, Timothy Sleasman, William Anderson, Ra’id Awadallah
Format: Article
Language:English
Published: MDPI AG 2019-10-01
Series:Sensors
Subjects:
sub-wavelength focusing
near field plates
diffraction limit
metasurface
evanescent spectrum
finite element method
corrugated surface
sensing
Online Access:https://www.mdpi.com/1424-8220/19/20/4534

Internet

https://www.mdpi.com/1424-8220/19/20/4534

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