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14 September 2016 Shearing interferometer with adjustable optical path difference for exoplanet detection
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The direct detection of exoplanets is obstructed by bright of a nearby star. Rotational shearing interferometer may cancels the light from the star in the infrared region when its OPD is λ2, however, this ideal condition are almost impossible to achieve. We propose a technique that incorporates a wedge prisms system to control the interferometer OPD, the interferometer is based in the Mach-Zhender configuration and incorporates two dove prisms as rotational shearing system. Simulated interference patterns are presented to evaluate the system feasibility.
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Beethoven Bravo-Medina, G. Garcia-Torales, Marija Strojnik, Jorge L. Flores, and E. de la Fuente "Shearing interferometer with adjustable optical path difference for exoplanet detection", Proc. SPIE 9973, Infrared Remote Sensing and Instrumentation XXIV, 99730W (14 September 2016);

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