Transmission and reflection mode switching terahertz metasurface for wavefront manipulation

Le résumé fourni par la source

Metasurfaces possess the ability to manipulate the wavefront of electromagnetic waves, but the majority of them are limited to single transmission or reflection mode without altering their structure. To address this limitation, we proposed a switchable terahertz metasurface for wavefront manipulation. By capitalizing on the phase transition properties of vanadium dioxide (its conductivity changes with temperature), the metasurface can work in the transmission or reflection mode controlled by temperature. Additionally, we designed 8 encoding elements to achieve phase gradient by changing the shape of the unit element. Finally, we arranged the encoding unit element to create a transmission and reflection mode switching optical device for beam steering and focusing.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.