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21 July 2010 Development of a high-dynamic range imaging instrument for a single telescope by a pupil remapping system
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Abstract
We present the laboratory demonstration of a very high-dynamic range imaging instrument FIRST (Fibered Imager foR Single Telescope). FIRST combines the techniques for aperture masking and a single-mode fiber interferometer to correct wavefront errors, which leads to a very high-dynamic range up to 106 around very near the central object (~ λ/D) at visible to near-infrared wavelengths. Our laboratory experiments successfully demonstrated that the original image can be reconstructed through a pupil remapping system. A first on-sky test will be performed at the Lick Observatory 3- m Shane telescope for operational tests in the summer of 2010.
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Takayuki Kotani, Sylvestre Lacour, Elodie Choquet, Elsa Huby, Guy S. Perrin, Pierre Fedou, Franck Marchis, Gaspard Duchene, Éric M. Thiébaut, Julien M. Woillez, Jean-Philippe Berger, Pascal J. Bordé, Olivier Chesneau, Pierre Kervella, Olivier Lai, Stephen T. Ridgway, Daniel Rouan, Alain Lecavelier des Etangs, and Alfred Vidal-Madjar "Development of a high-dynamic range imaging instrument for a single telescope by a pupil remapping system", Proc. SPIE 7734, Optical and Infrared Interferometry II, 77343O (21 July 2010); doi: 10.1117/12.856899; https://doi.org/10.1117/12.856899
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