| Téléchargement | - Voir la version finale : Calibration and testing with real turbulence of a pyramid sensor employing static modulation (PDF, 666 Kio)
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| DOI | Trouver le DOI : https://doi.org/10.1364/OE.17.007186 |
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| Auteur | Rechercher : Ledue, Jeffrey1; Rechercher : Jolissaint, Laurent1; Rechercher : Véran, Jean-Pierre; Rechercher : Bradley, Colin |
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| Affiliation | - Conseil national de recherches du Canada. Institut Herzberg d'astrophysique du CNRC
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| Format | Texte, Article |
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| Résumé | The pyramid sensor (PS) is an interesting alternative to the Shack-Hartmann wavefront sensor (SH WFS) for astronomical Adaptive Optics (AO) because of its potential advantages in sensitivity and applicability to novel wavefront sensing schemes. The PS uses a pyramidal prism to perform a knife-edge test in two dimensions simultaneously and relies on modulating the position of the prism to increase the linear dynamic range. It has been suggested that this could also be accomplished by a static diffusing element. We test this idea and show that the diffuser produces a modulation effect. We compare the results of our PS to a SH WFS measuring spatial and temporal properties of real turbulence produced in the lab with a hot-air turbulence generator. |
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| Date de publication | 2009 |
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| Maison d’édition | Optical Society of America |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 23004549 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 2953f3fd-9846-479b-980b-e65d294e9bec |
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| Enregistrement créé | 2018-11-19 |
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| Enregistrement modifié | 2020-05-30 |
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