Enhancing Antireflection Based on a Symmetry-Dependent Kerker Effect.

The significance of antireflection has persisted over time due to its numerous optical applications. To achieve broadband antireflection, multiple element-based designs using graded-index films or multiresonant nanostructures have been conventionally employed. In this work, we propose an additional degree of freedom in developing antireflection by manipulating the orientation angles of nanostructures to achieve the symmetry-dependent Kerker condition.