Experimental verification of an optical vortex coronagraph.
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.
Lee
Jae Hoon
JH
College of Optical Sciences, University of Arizona, Tucson, AZ 85721, USA.
Foo
Gregory
G
Johnson
Eric G
EG
Swartzlander
Grover A
GA