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Title: Laboratory performance of the Keck interferometer nulling beam combiner
Authors: Mennesson, B.
Crawford, S. L.
Serabyn, E.
Martin, S.
Creech-Eakman, M.
Hardy, G.
Keywords: nulling
Issue Date: Apr-2003
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2003.
Citation: Towards Other Earth, Heidelberg, Germany, April 22, 2003
Abstract: Now that regular visibility squared measurements are routinely achieved, mid-infrared nulling is the next observing mode to be implemented on the Keck Interferometer. This mode's main objective is the characterization of exo-zodiacal dust disks around nearby main sequence stars in support of the TPF space mission. Keck Nuller also shares numerious characteristics with an interferometric TPF, and will then serve as a technical precursor for this mission. We report here the results obtained in the laboratory with the KI mid-IR nulling beam combiner, which is based on a dual polarization Modified Mach Zender combiner and dispersion and achromatic nulling through zinc-selenide dielectric plates.
Appears in Collections:JPL TRS 1992+

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