Large-aperture fast multilevel Fresnel zone lenses in glass and ultrathin polymer films for visible and near-infrared imaging applications.

Abstract

The ability to fabricate 4-level diffractive structures with 1 µm critical dimensions has been demonstrated for the creation of fast (∼f/3.1 at 633 nm) Fresnel zone lenses (FZLs) with >60% diffraction efficiency into the -1 focusing order and nearly complete suppression of 0 and +1 orders. This is done using tooling capable of producing optics with 800 mm apertures. A 4-level grating fabricated in glass at 300 mm aperture is shown to have <15  nm rms holographic phase error. Glass FZLs have also been used as mandrels for casting zero-thermal-expansion, 20 µm thick polymer films created with the 4-level structure as a route to mass replication of efficient diffractive membranes for ultralight segmented space-based telescope applications.

DOI: 10.1364/AO.53.002312

Cite this paper

@article{Britten2014LargeapertureFM, title={Large-aperture fast multilevel Fresnel zone lenses in glass and ultrathin polymer films for visible and near-infrared imaging applications.}, author={Jerald A. Britten and Shamusundar N Dixit and Michael DeBruyckere and Daniel Steadfast and James R. Hackett and Brandon S. Farmer and Garrett Poe and Brian P Patrick and Paul D Atcheson and Jeanette L Domber and Aaron Seltzer}, journal={Applied optics}, year={2014}, volume={53 11}, pages={2312-6} }