Phys.org  August 27, 2021 The lack of modularization and lumped element reconfigurability in photonics has prevented the transition to an all-optical analog computing platform. A team of researchers in the US (George Washington University, UCLA, City College of New York) explored using numerical simulation, a nanophotonic platform based on epsilon-near-zero materials capable of solving in the analog domain partial differential equations (PDE). Wavelength stretching in zero-index media enables highly nonlocal interactions within the board based on the conduction of electric displacement, which can be monitored to extract the solution of a broad class of PDE problems. By exploiting the experimentally […]