RISTRETTO: a comparative performance analysis of the unmodulated Pyramid wavefront sensor and the Zernike wavefront sensor [PDF]
Adaptive Optics Systems IXThe RISTRETTO instrument, a proposed visible high-contrast, high-resolution spectrograph for the VLT, has the primary science goal of detecting reflected light from nearby exoplanets and characterizing their atmospheres. Specifically, it aims to atmospherically characterize Proxima b, our closest temperate rocky exoplanet, located $37 mas$ from its ...
Shinde, Muskan +2 more
arxiv +3 more sources
The Asymmetric Pupil Fourier Wavefront Sensor [PDF]
Publications of the Astronomical Society of the Pacific, 2013 5 figures, accepted for publication by ...
Martinache, Frantz
openaire +7 more sources
Advancing wavefront sensing: meta Shack-Hartmann sensor enhances phase imaging [PDF]
Light: Science & ApplicationsA meta-lens array-based Shack-Hartmann wavefront sensor has been developed to break the limits imposed by the size and curvature of traditional micro-lenses, which significantly improves both sampling density and angular resolution of phase measurement ...
Xiaoyuan Liu, Zihan Geng, Mu Ku Chen
doaj +2 more sources
, 2019 In this paper, we address the inverse problem of fast, stable, and high-quality wavefront reconstruction from pyramid wavefront sensor data for Adaptive Optics systems on Extremely Large Telescopes.
Victoria Hutterer +2 more
openalex +3 more sources
Experimental wavefront sensing techniques based on deep learning models using a Hartmann-Shack sensor for visual optics applications [PDF]
Scientific ReportsWavefront sensing is essential in visual optics for evaluating the optical quality in systems, such as the human visual system, and understanding its impact on visual performance. Although traditional methods like the Hartmann-Shack wavefront sensor (HSS)
Juan Sebastián Ramírez-Quintero +3 more
doaj +2 more sources
Non-modulated pyramid wavefront sensor. Use in sensing and correcting atmospheric turbulence [PDF]
Astronomy & Astrophysics, 2023 Context. The diffusion of adaptive optics systems in astronomical instrumentation for large ground-based telescopes is rapidly increasing and the pyramid wavefront sensor is replacing the Shack-Hartmann as the standard solution for single conjugate ...
G. Agapito +4 more
semanticscholar +1 more source
The bright pyramid wavefront sensor [PDF]
Techniques and Instrumentation for Detection of Exoplanets X, 2021 submitted proceedings to SPIE SPIE Optical Engineering + Applications 2021, Techniques and Instrumentation for Detection of Exoplanets ...
Jean-François Sauvage +7 more
openaire +3 more sources
On-sky Reconstruction of Keck Primary Mirror Piston Offsets Using a Zernike Wavefront Sensor [PDF]
Astrophysical Journal, 2022 The next generation of large ground- and space-based optical telescopes will have segmented primary mirrors. Co-phasing the segments requires a sensitive wavefront sensor capable of measuring phase discontinuities.
M. V. van Kooten +5 more
semanticscholar +1 more source
Dual-angle open field wavefront sensor for simultaneous measurements of the central and peripheral human eye. [PDF]
Biomed Opt Express, 2020 Romashchenko D, Lundström L.
europepmc +2 more sources
Variation on a Zernike wavefront sensor theme: Optimal use of photons [PDF]
Astronomy & Astrophysics, 2021 Aims. The Zernike wavefront sensor (ZWFS) is a concept belonging to the wide class of Fourier-filtering wavefront sensors (FFWFSs). The ZWFS is known for its extremely high sensitivity and low dynamic range, which makes it a unique sensor for second ...
V. Chambouleyron +8 more
semanticscholar +1 more source