Gallium nitride-based geometric and propagation metasurfaces for vortex beam emissions

Gallium nitride-based geometric and propagation metasurfaces for vortex beam emissions

This work experimentally demonstrates the highly-efficient geometric and propagation metasurfaces for vortex beam emissions. These metasurfaces are respectively composed of high-aspect-ratio fin-like and cylindrical gallium nitride (GaN) meta-atoms. Remarkably, the optimized configuration of the fin...

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Bibliographic Details
Main Authors:	Meng-Hsin Chen, Yan-Liang Liu, Vin-Cent Su
Format:	Article
Language:	English
Published:	Elsevier 2024-02-01
Series:	Heliyon
Online Access:	http://www.sciencedirect.com/science/article/pii/S2405844024014671

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