2025/09/29 by Spiecker, David E., Brown, Thomas G.
#FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Optics (physics.optics)
paper · doi:10.48550/arxiv.2509.25119
We present an experimental test of the use of stress engineered optics incorporated into a Shack-Hartmann wavefront sensor in such a way that the shape of the point spread function (PSF) provides polarization information while the displacement of the PSF gives information about the local wavefront gradient, allowing a reconstruction of the wavefront gradient. Using calibrated polarizations and wavefront tilts we construct a measurement matrix capable of reconstructing both the Stokes parameters and the wavefront, yielding a measurement of wavefront gradients as small as 100 μrad with a polarimetric angular error of approximately 0.1 radians on the Poincaré sphere in a single frame measurement.