A coronagraph designed for high contrast imaging applications has been experimentally tested using coherent laser light and a vortex mask of topological charge m 2. Intensity contrast values of 95% were achieved in this first verification of the scheme. Improvements for approaching the theoretical value of 100% are suggested.
Department, Program, or Center
Chester F. Carlson Center for Imaging Science (COS)
Physical Review Letters, The American Physical Society, vol. 97, no. 05, August 4, 2006
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