Hybrid meta/refractive lens design with inverse design using physical optics

• DOI: 10.1364/opticaopen.24298441
• Publication Date: 2023-10-13T10:04:47Z
• Authors: Christopher Renshaw; Ko-Han Shih
• Keywords: Gradient-index optics; Optical power; Physical optics; Geometrical optics

Metasurface optics and refractive are combined to form hybrid lenses, where the elements provide optical power but metasurfaces used correct aberrations. We introduce an algorithm optimize metasurface nanostructures in a lens with freedom arbitrarily interleave train. A scalar field, ray-wave propagation method is developed propagate incident derived adjoint fields through elements, enabling efficient nanostructure optimization under framework of gradient optimization. Several numerical examples configurations provided show versatility algorithm.