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Closed loop, DM diversity-based, wavefront correction algorithm for high contrast imaging systems

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dc.contributor.author Give’on, Amir
dc.contributor.author Belikov, Ruslan
dc.contributor.author Shaklan, Stuart
dc.contributor.author Kasdin, Jeremy
dc.date.accessioned 2008-11-24T16:19:14Z
dc.date.available 2008-11-24T16:19:14Z
dc.date.issued 2007-09-13
dc.identifier.citation Optics Express, Vol. 15, Issue 19, pp. 12338-12343 doi:10.1364/OE.15.012338 en_US
dc.identifier.clearanceno 07-2036
dc.identifier.uri http://hdl.handle.net/2014/41017
dc.description.abstract High contrast imaging from space relies on coronagraphs to limit diffraction and a wavefront control systems to compensate for imperfections in both the telescope optics and the coronagraph. The extreme contrast required (up to 10(-10) for terrestrial planets) puts severe requirements on the wavefront control system, as the achievable contrast is limited by the quality of the wavefront. This paper presents a general closed loop correction algorithm for high contrast imaging coronagraphs by minimizing the energy in a predefined region in the image where terrestrial planets could be found. The estimation part of the algorithm reconstructs the complex field in the image plane using phase diversity caused by the deformable mirror. This method has been shown to achieve faster and better correction than classical speckle nulling en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher OSA en_US
dc.title Closed loop, DM diversity-based, wavefront correction algorithm for high contrast imaging systems en_US
dc.type Article en_US


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