All-dielectric Reconfigurable Huygens' Metasurface with Only Electric Response

Efficient wavefront control is crucial for a myriad of applications in free-space optics. In this context, the use of reconfigurable metasurfaces is a go-to solution due to their subwavelength depth, efficiency and versatility. This work presents a germanium-based metasurface capable of performing b...

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Bibliographic Details
Main Authors: Manez-Espina, L. M., Diaz-Rubio, A.
Format: Conference Proceeding
Language:English
Subjects:
Beam steering
Electric potential
Free-space optical communication
Metasurfaces
Performance evaluation
Phase change materials
Refractive index
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Summary:Efficient wavefront control is crucial for a myriad of applications in free-space optics. In this context, the use of reconfigurable metasurfaces is a go-to solution due to their subwavelength depth, efficiency and versatility. This work presents a germanium-based metasurface capable of performing beam steering operations using non-volatile phase-change materials (PCM) as their active component. Furthermore, the device is able to exploit local and non-local behaviour by tuning the refractive index of the PCM in the Near-Infrared (NIR).
ISSN:2573-2706
DOI:10.1109/Metamaterials58257.2023.10289540