Laboratory Testing of a Lyot Coronagraph Equipped with an Eighth-Order Notch Filter Image Mask

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dc.creatorCrepp, Justin R.
dc.creatorGe, Jian
dc.creatorHeuvel, Andrew D. Vanden
dc.creatorMiller, Shane P.
dc.creatorKuchner, Marc J.
dc.date2006-04-07
dc.date.accessioned2026-07-07T10:43:46Z
dc.date.available2026-07-07T10:43:46Z
dc.descriptionWe have built a series of notch filter image masks that make the Lyot coronagraph less susceptible to low-spatial-frequency optical aberrations. In this paper, we present experimental results of their performance in the lab using monochromatic light. Our tests show that these ``eighth-order'' masks are resistant to tilt and focus alignment errors, and can generate contrast levels of 2 x 10^-6 at 3 lambda/D and 6 x 10^-7 at 10 lambda/D without the use of corrective optics such as deformable mirrors. This work supports recent theoretical studies suggesting that eighth-order masks can provide the Terrestrial Planet Finder Coronagraph with a large search area, high off-axis throughput, and a practical requisite pointing accuracy.
dc.descriptionAccepted to ApJ. 16 pages, 7 figures, Contact jcrepp@astro.ufl.edu for high resolution images
dc.identifierhttps://arxiv.org/abs/astro-ph/0604167
dc.identifierhttp://arxiv.org/abs/astro-ph/0604167
dc.identifierAstrophys.J.646:1252-1259,2006
dc.identifierdoi:10.1086/504977
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182362
dc.subjectAstrophysics
dc.titleLaboratory Testing of a Lyot Coronagraph Equipped with an Eighth-Order Notch Filter Image Mask
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