Adjoint Variable Method Unleashed: A Journey into Rapid Inverse Design Strategies (Invited Paper)

This paper explores the transformative role of the Adjoint Variable Method (AVM) inrapid inverse design strategies, particularly in the context of metasurfaces. The AVM, a gradient-based optimization technique, efficiently acquires sensitivity information for design optimization. Recent applications of the AVM in metasurface engineering are highlighted, showcasing its versatility and efficiency in addressing design challenges.