Error analysis for a compound nulling interferometer

Charley Noecker; Roger P. Linfield

doi:10.1117/12.460934

26 February 2003 Error analysis of a compound nulling interferometer

Charley Noecker, Roger P. Linfield

Author Affiliations +

Proceedings Volume 4852, Interferometry in Space; (2003) https://doi.org/10.1117/12.460934
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

Nulling interferometry at mid-infrared wavelengths holds promise for finding and characterizing Earth-like planets that orbit nearby stars. By strongly suppressing light from a nearby star, the instrument becomes sensitive enough for direct detection of planets orbiting that star. A compound nulling interferometer (combining light from more than 2 telescopes) is needed for these searches, in order to achieve adequate light suppression across the full disk of the star. We present an error analysis of quasi-static and chopping variants of a four element nulling interferometer, including the dependence on amplitude, delay, baseline length, and telescope pointing errors.

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Charley Noecker, Charley Noecker, Roger P. Linfield, Roger P. Linfield, "Error analysis of a compound nulling interferometer", Proc. SPIE 4852, Interferometry in Space, (26 February 2003); doi: 10.1117/12.460934; https://doi.org/10.1117/12.460934

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