New high-density deformable mirrors for high-contrast imaging
نویسندگان
چکیده
منابع مشابه
High contrast imaging lab
The vortex coronagraph is a transparent phase-based coronagraph which imprints an eilθ phase ramp (or screw dislocation) on the point spread function (PSF) of the telescope+instrument. l is called the topological charge of the vortex, and quantifies the number of times the phase goes through 2π radians. For the vortex to be an efficient coronagraph, the topological charge has to be a non-zero e...
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ژورنال
عنوان ژورنال: Astronomy & Astrophysics
سال: 2012
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361/201219707