We want to simulate nanophotonic structures such as Berry-Pancharatnam metasurfaces and tunable nanophotonic structures containing graphene. These photonic structures, containing subwavelength electromagnetic resonators, are revolutionizing photonics, because they can provide new optical response or existing response with a tiny footprint. This recent evolution has become possible by advanced nanofabrication facilities as well as state-of-the-art high-performance computing facilities. Indeed, during the design, the electromagnetic fields in the nanophotonic structures need to be simulated on a deep subwavelength scale to resolve the response of the resonators, but also over multiwavelength surfaces containing thousands of resonators to determine the response of the entire device.
In this project we are specifically interested in Berry-Pancharatnam metasurfaces, where all resonators are different. In this way, we can locally modify the amplitude and/or phase of the electromagnetic fields, e.g., to create lenses and beam manipulating devices. We have early prototypes but need now more RAM in order to be able to simulate the entire Berry-Pancharatnam metasurfaces and compare with our experimental results.