Synthesizing High-performance Reconfigurable Meta-devices through Multi-objective Optimization

摘要

Metasurfaces offer the potential to realize largeSWaP (size, weight, and power) reduction over conventional opticalelements for their ability to achieve comparable functionalitiesin ultrathin geometries. Moreover, metasurfaces designed withphase change materials offer the potential to go beyond whatis achievable by conventional optics by enabling multiplefunctionalities in a single reconfigurable meta-device. However,designing a single metasurface geometry that simultaneouslyachieves multiple desired functionalities while meeting allbandwidth requirements and fabrication constraints is a verychallenging problem. Fortunately, this challenge can be overcomeby the use of state-of-the-art multi-objective optimizationalgorithms which are well-suited for the inverse-design of multifunctionalmeta-devices.