z-logo
open-access-imgOpen Access
Spherical wavefront measurement on modified cyclic radial shearing interferometry
Author(s) -
Dian Bian,
Ki-Nam Joo,
Yang Lü,
Liandong Yu
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.441675
Subject(s) - wavefront , optics , shearing interferometer , interferometry , shearing (physics) , wavefront sensor , physics , curved mirror , curvature , deformable mirror , astronomical interferometer , mathematics , geometry , thermodynamics
We propose a radial shearing interferometric approach to measure spherical wavefronts as both of the reflective and transmissive optical configurations. The modified cyclic radial shearing interferometer uses a single lens in the optical layout, which can conveniently adjust the radial shearing ratio between two shearing spherical wavefronts, and the use of a polarization camera enables to reconstruct the wavefront by a single image. The wavefront mapped onto the camera plane can be identified and quantified throughout an optimized wavefront reconstruction algorithm. In the experiments, plano-convex lenses and concave mirrors were used to generate spherical wavefronts, and the proposed system was able to reconstruct the surface figures after system characterization and calibration. Further investigations were performed to evaluate the system measurement accuracy by the radius of curvature comparison with design value and a commercial Shack-Hartmann wavefront sensor.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here