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Durham e-Theses
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Technologies for Astronomical Wide-Field Adaptive Optics

GUZMAN, CHRISTIAN,DANI (2010) Technologies for Astronomical Wide-Field Adaptive Optics. Doctoral thesis, Durham University.

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Abstract

Adaptive Optics (AO) can greatly enhance the resolution of astronomical images, achieving close to diffraction-limited performance in the near infrared; however there are a number of areas where significant improvements can be made, one of them being the very limited field of view that current AO systems can achieve. ‘Wide-field AO’ encompasses those techniques devised to widen the corrected field of view, from a few tens of arcseconds in ‘classical AO’ systems to several arcminutes in Multi-Object AO (MOAO).
This thesis researches some topics within ‘wide-field AO’ for astronomy, concentrating its experimental work in some of the key technologies required to implement MOAO: open-loop models to run deformable mirrors (DM) in a MOAO system and a ‘Figure Sensor’ to measure the shape of a DM with required accuracy and at high-speed, in order to incorporate it into the AO control system.

Item Type:Thesis (Doctoral)
Award:Doctor of Philosophy
Keywords:Astronomical Instrumentation, Adaptive Optics, Deformable Mirror, Shack-Hartmann Wavefront Sensor
Faculty and Department:Faculty of Science > Physics, Department of
Thesis Date:2010
Copyright:Copyright of this thesis is held by the author
Deposited On:11 Feb 2011 11:57

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