Mold-free self-assembled scalable microlens arrays with ultrasmooth surface and record-high resolution.

ABSTRACT: Microlens arrays (MLAs) based on the selective wetting have opened new avenues for developing compact and miniaturized imaging and display techniques with ultrahigh resolution beyond the traditional bulky and volumetric optics. However, the selective wetting lenses explored so far have been constrained by the lack of precisely defined pattern for highly controllable wettability contrast, thus limiting the available droplet curvature and numerical aperture, which is a major challenge towards the practical high-performance MLAs. Here we report a mold-free and self-assembly approach of mass-production of scalable MLAs, which can also have ultrasmooth surface, ultrahigh resolution, and the large tuning range of the curvatures. The selective surface modification based on tunable oxygen plasma c

SUBMITTER: Liu Z 

PROVIDER: S-EPMC10247731 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature