Near index matching enables solid diffractive optical element fabrication via additive manufacturing.

ABSTRACT: Diffractive optical elements (DOEs) have a wide range of applications in optics and photonics, thanks to their capability to perform complex wavefront shaping in a compact form. However, widespread applicability of DOEs is still limited, because existing fabrication methods are cumbersome and expensive. Here, we present a simple and cost-effective fabrication approach for solid, high-performance DOEs. The method is based on conjugating two nearly refractive index-matched solidifiable transparent materials. The index matching allows for extreme scaling up of the elements in the axial dimension, which enables simple fabrication of a template using commercially available 3D printing at tens-of-micrometer resolution. We demonstrated the approach by fabricating and using DOEs serving as microle

SUBMITTER: Orange Kedem R 

PROVIDER: S-EPMC10495398 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature