We describe a method to observe dim exoplanets that eliminates light from the parent star across the entire exit pupil without sacrificing light from the planet by use of a vortex mask of topological charge m=2.
Department, Program, or Center
Chester F. Carlson Center for Imaging Science (COS)
Optics Letters, Optical Society of America, vol. 30, no. 24, December 15, 2005
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