Add to ORKGA 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. © 2006 The American Physical Society
International audienceWe propose the development of a high contrast imaging technique enabling the s...
Optical vortex coronagraphs have recently been deployed on most of the world’s largest ground-based ...
In this paper we present the fabrication process and tests of two different types of l = 2 spiral ph...
A coronagraph designed for high contrast imaging applications has been experimentally tested using c...
The Optical Vortex Coronagraph (OVC) is a phase-based coronagraph that can enable high-contrast imag...
An optical vortex is characterized by a dark core of destructive interference in a light beam. One o...
We report the status of JPL and JDSU ongoing technological developments and contrast results of the ...
International audienceContext. Specific high-contrast imaging instruments are mandatory to character...
The optical vortex coronagraph is potentially a remarkably effective device, at least for an ideal u...
International audienceThe evanescent wave coronagraph uses the principle of frustrated total interna...
The vortex coronagraph has already enabled high-contrast observations very close to bright stars on ...
Context.A high contrast coronagraph is expected to provide one of the promising ways to directly obs...
The Vector Vortex Coronagraph is a phase-based coronagraph, one of the most efficient in terms of in...
For direct imaging of exoplanets, Scalar Vortex Coronagraphs (SVCs) are an attractive alternative to...
Optical vortex phase masks are now installed at many ground-based large telescopes for high-contrast...
International audienceWe propose the development of a high contrast imaging technique enabling the s...
Optical vortex coronagraphs have recently been deployed on most of the world’s largest ground-based ...
In this paper we present the fabrication process and tests of two different types of l = 2 spiral ph...
A coronagraph designed for high contrast imaging applications has been experimentally tested using c...
The Optical Vortex Coronagraph (OVC) is a phase-based coronagraph that can enable high-contrast imag...
An optical vortex is characterized by a dark core of destructive interference in a light beam. One o...
We report the status of JPL and JDSU ongoing technological developments and contrast results of the ...
International audienceContext. Specific high-contrast imaging instruments are mandatory to character...
The optical vortex coronagraph is potentially a remarkably effective device, at least for an ideal u...
International audienceThe evanescent wave coronagraph uses the principle of frustrated total interna...
The vortex coronagraph has already enabled high-contrast observations very close to bright stars on ...
Context.A high contrast coronagraph is expected to provide one of the promising ways to directly obs...
The Vector Vortex Coronagraph is a phase-based coronagraph, one of the most efficient in terms of in...
For direct imaging of exoplanets, Scalar Vortex Coronagraphs (SVCs) are an attractive alternative to...
Optical vortex phase masks are now installed at many ground-based large telescopes for high-contrast...
International audienceWe propose the development of a high contrast imaging technique enabling the s...
Optical vortex coronagraphs have recently been deployed on most of the world’s largest ground-based ...
In this paper we present the fabrication process and tests of two different types of l = 2 spiral ph...