Compact eye camera with two-third wavelength phase-delay metalens.

ABSTRACT: The essential role of mobile devices in modern life has driven increasing demand for compact, lightweight, and high-performance imaging systems. Recently, metalenses, which manipulate electromagnetic waves through sub-wavelength nanostructures on flat surfaces, have emerged as promising alternatives to traditional refractive lenses. However, their commercial adoption remains limited due to manufacturing challenges in defining high-aspect-ratio nanostructures, which drive up costs and reduce production yields. To address these issues, we propose an infrared metalens with a wide field of view, designed to reduce the aspect ratio of the nanostructures. Even with a limited phase modulation depth of 4π/3 which is two-thirds that of the conventional designs, we demonstrate that the height of the

SUBMITTER: Yun JG 

PROVIDER: S-EPMC12332137 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature