1.
Phys Rev Lett
; 97(5): 053901, 2006 Aug 04.
Artigo
em Inglês
| MEDLINE
| ID: mdl-17026101
RESUMO
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.
2.
Opt Lett
; 30(24): 3308-10, 2005 Dec 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-16389814
RESUMO
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.