Publication Date:
2019-07-13
Description:
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.
Keywords:
Instrumentation and Photography
Type:
Toward Other Earths'' Darwin/TPF and the Search for Extrasolar Terrestrial Planets Conference; Apr 22, 2003 - Apr 25, 2003; Heidelberg; Germany
Format:
text
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