Multi-layer two-dimensional topological material-based adjustable three-dimensional optical stealth cloak

The invention provides a multi-layer two-dimensional topological material-based adjustable three-dimensional optical stealth cloak. The adjustable three-dimensional optical stealth cloak is achieved through a surface covering shell layer made of a two-dimensional topological material, wherein the surface covering shell layer is formed by superposing a plurality of two-dimensional topological material ring layers from bottom to top; each layer can correspond to different dielectric constant and magnetic conductivity through controlling the crystallization degree of the two-dimensional topological materials in different ring layers to obtain three-dimensional dielectric constant and magnetic conductivity distribution required for optical stealth; light which should pass through a stealth cloak area can only steer around the stealth cloak area and original distribution is restored after the light steers around the stealth cloak area, so that an object in the stealth cloak area is hidden. Meanwhile, the real-time opening/closing performance of the optical stealth cloak is achieved through controlling the crystallization-anti-crystallization process of the two-dimensional topological material in each ring layer in cycle, so that the disadvantage that the optical stealth cloak cannot be opened or closed in cycle is overcome.