Magnetic tuning of liquid crystal dielectric metasurfaces

Abstract Dielectric metasurfaces hold an exceptional potential for the next generation of tunable optical systems that find applications in sensing, ranging, and imaging. Here, we introduce demonstrate magnetic field tuning dielectric infiltrated with liquid crystals. To illustrate this concept, show how reorientation crystal induced by changes spectrum resonant metasurface. This new magnetic-field approach offers significant advantages over other methods since it does not require pre-alignment or fabrication structured electrodes, which are both challenging when dealing metasurfaces. Furthermore, there no strict limitations on thickness cells. Importantly, our allows gradual resonances changing orientation and, thereby, shows good promise highly metadevices.