dorsal/arxiv
View SchemaWavefront sensor based on varying transmission filters: theory and expected performance
| Authors | Francois Henault |
|---|---|
| Categories | |
| ArXiv ID | physics/0510224 |
| URL | https://arxiv.org/abs/physics/0510224 |
| DOI | 10.1080/09500340500073495 |
| Journal | J.Mod.Opt. 52:1917-1931,2005 |
Abstract
The use of Wavefront Sensors (WFS) is nowadays fundamental in the field of instrumental optics. This paper discusses the principle of an original and recently proposed new class of WFS. Their principle consists in evaluating the slopes of the wavefront errors by means of varying density filters placed into the image plane of the tested optical system. The device, sometimes called 'optical differentiation WFS' is completed by a digital data-processing system reconstructing the wavefront from the obtained slopes. Various luminous sources of different wavelengths and spectral widths can be employed. The capacities of the method are discussed from the geometrical and Fourier optics points of view, then by means of numerical simulations showing that the ultimate accuracy can be well below lambda/10 and lambda/100 Peak-to-Valley (PTV) and RMS respectively, provided that certain precautions are taken.
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"abstract": "The use of Wavefront Sensors (WFS) is nowadays fundamental in the field of\ninstrumental optics. This paper discusses the principle of an original and\nrecently proposed new class of WFS. Their principle consists in evaluating the\nslopes of the wavefront errors by means of varying density filters placed into\nthe image plane of the tested optical system. The device, sometimes called\n\u0027optical differentiation WFS\u0027 is completed by a digital data-processing system\nreconstructing the wavefront from the obtained slopes. Various luminous sources\nof different wavelengths and spectral widths can be employed. The capacities of\nthe method are discussed from the geometrical and Fourier optics points of\nview, then by means of numerical simulations showing that the ultimate accuracy\ncan be well below lambda/10 and lambda/100 Peak-to-Valley (PTV) and RMS\nrespectively, provided that certain precautions are taken.",
"arxiv_id": "physics/0510224",
"authors": [
"Francois Henault"
],
"categories": [
"physics.optics",
"astro-ph",
"astro-ph.IM"
],
"doi": "10.1080/09500340500073495",
"journal_ref": "J.Mod.Opt. 52:1917-1931,2005",
"title": "Wavefront sensor based on varying transmission filters: theory and expected performance",
"url": "https://arxiv.org/abs/physics/0510224"
},
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