Research and analysis based on superlens

The volume and aberration issues of traditional refractive lenses are increasingly becoming bottlenecks for the miniaturization and integration of modern optical systems. The electromagnetic metalens, a planar optical device based on metasurfaces, offers a revolutionary solution to break through this bottleneck. Among them, dielectric metalenses based on the principle of propagation phase have become one of the most deeply researched and promising technical paths due to their intuitive design methodology and high efficiency at specific wavelengths. This paper aims to systematically elaborate the full-chain technical system of single-wavelength high-efficiency dielectric metalenses based on propagation phase.