Implicit Adaptive Moment Estimation Method for On-Chip Metasurface Design and Optimization

In this letter, we present a new implicit optimizing method for optical device’s or system’s design and optimization. This method, derived from the traditional adaptive moment estimation algorithm which has been more and more frequently adopted in disciplinary fields of artificially intelligence, provides one potential feasible way of directly optimizing photonic systems or device without the help of extra AI or mathematical models which need to be established and trained in most cases of AI photonics. Moreover, optimizing efficiency are prominently promoted since this method takes gradient information into consideration to guide the optimization. This method’s fidelity and performance is demonstrated under the case of designing on-chip metasurface structured photonic logic gates.