Offset sampling grids in a pyramid wavefront sensor double the number of reconstructable wavefront modes and, with full-rank intensity processing, allow simultaneous phase and amplitude sensing.
arXiv e-prints, 2003–07228 (2020) Vérinaud, C.: On the nature of the measurements provided by a pyramid wave-front sensor
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Super-resolution wavefront reconstruction in adaptive-optics with pyramid sensors
Offset sampling grids in a pyramid wavefront sensor double the number of reconstructable wavefront modes and, with full-rank intensity processing, allow simultaneous phase and amplitude sensing.