| abstract |
The invention discloses a metal-graphene mixed structure super surface, a sensor and an optical switch. The super surface of the metal-graphene mixed structure is formed by periodically arranging metal-graphene mixed structure units on a dielectric substrate; each metal-graphene mixed structure unit comprises a metal etched aluminum cutting line, a metal etched symmetrical split ring and a long strip graphene nano strip; the aluminum cutting line and the symmetrical splitting rings are arranged at intervals and in a coplanar manner to form a coplanar layer, the coplanar layer is positioned on the uppermost layer, the dielectric substrate is positioned on the lowermost layer, and the long graphene nano-strip is positioned between the symmetrical splitting rings and the dielectric substrate; the long graphene nanoribbons of adjacent metal-graphene mixed structural units are continuous. The sensor and the optical switch formed on the basis of the super surface have the characteristics of higher sensitivity, faster response time, adjustable optical parameters and the like, and meanwhile, the coupling device is small in size and convenient to integrate. |