Abstract
The plenoptic camera has the capability of generating images from as many different viewpoints as microlenses building its array, therefore it is possible to extract several images of the telescope aperture as viewed from those different viewpoints, and after processing them, estimate the incoming atmospheric wavefront. A customized plenoptic camera has been installed at the focus of the Vacuum Tower Telescope at the Teide Observatory in order to assess the feasibility of the plenoptic device as wavefront sensor for solar telescopes. While conventional sensors struggle when measuring phase in wide field-of-view and further from the optical axis, the plenoptic camera gets advantage of imaging extended objects as it could be the solar surface. Telescope results derived from sensing the atmospheric turbulence in a solar scenario by integrating the plenoptic camera in a real science environment are presented and the viability of this type of device as wavefront sensor for solar adaptive optics is hereby demonstrated.
| Original language | English |
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| Publication status | Published - 2017 |
| Externally published | Yes |
| Event | 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017 - Tenerife, Canary Islands, Spain Duration: 25 Jun 2017 → 30 Jun 2017 https://web.archive.org/web/20200117115411/https://research.iac.es/congreso/AO4ELT5/pages/proceedings.html https://web.archive.org/web/20240710213944/http://research.iac.es/congreso/AO4ELT5/index.html |
Conference
| Conference | 5th Adaptive Optics for Extremely Large Telescopes, AO4ELT 2017 |
|---|---|
| Abbreviated title | AO4ELT5 |
| Country/Territory | Spain |
| City | Tenerife, Canary Islands |
| Period | 25/06/17 → 30/06/17 |
| Other | The fifth Adaptive Optics for Extremely Large Telescopes (AO4ELT5) meeting will be taking place in June 2017 at the Hotel Botánico in Puerto de la Cruz, Tenerife. One of the major challenges that face the future extremely large aperture telescopes (ELT's) is adaptive optics, and the goal of the meeting is to gather specialists to review and discuss the latest developments on this field. The topics of the conference include ELT’s current design in terms of AO systems, related instruments and science goals, and also pathfinder projects planned or implemented on existing telescopes, including solar telescopes, which provide relevant results for the next ELT’s design phase. Special attention will be given to new developments in several areas, such as mirrors, laser technologies, wavefront sensing and control, and new post-processing tools required to increase the image quality and increase the scientific return of the instruments. |
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