Infrared spaceborne rotating rotational-shearing interferometer for extrasolar planet detection

Marija Scholl

doi:10.1117/12.185851

14 September 1994 Infrared spaceborne rotating rotational-shearing interferometer for extrasolar planet detection

Marija Scholl

Proceedings Volume 2268, Infrared Spaceborne Remote Sensing II; (1994) https://doi.org/10.1117/12.185851
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

We consider the advantages and disadvantages of a rotating and a rotational shearing interferometer for the detection of a planet circling around a nearby star. A rotating, rotational-shearing interferometer is proposed for the detection of a faint object in the vicinity of a very bright object. We derive an expression for the interferometric pattern detected by a rotational shearing interferometer. When the interferometer points at the bright star, the observed fringes are due only to the wavefront originating at the faint planet. A two-aperture interferometric configuration, even though not necessary for the shearing function, is suggested to enhance the stability of a free-flying spaceborne structure.

Citation Download Citation

Marija Scholl "Infrared spaceborne rotating rotational-shearing interferometer for extrasolar planet detection", Proc. SPIE 2268, Infrared Spaceborne Remote Sensing II, (14 September 1994); https://doi.org/10.1117/12.185851

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