Comment on “Color astrophotography with a 100 mm-diameter f/2 polymer flat lens” [Appl. Phys. Lett. <b>126</b> , 051701 (2025)]
It is argued that the lens described in the paper commented upon has a focussing efficiency of less than 0.03% and an angular resolution for broadband radiation that is an order of magnitude worse that the diffraction limit. Furthermore incident radiation that is not focussed will lead to background fog in the image plane.
Authors
- G. K. Skinner (ORCID: https://orcid.org/0000-0002-1290-6956)
- John Krizmanic (ORCID: https://orcid.org/0000-0002-9690-9352)
Institutions
- Goddard Space Flight Center (US)
- Astrophysics Science Division (US)
- University of Birmingham (GB)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2025-12-01
- DOI
- https://doi.org/10.1063/5.0295471
- Primary Topic
- Advanced optical system design
- Type
- article
- Field-Weighted Citation Impact
- 0.00