Context. The vortex coronagraph is an optical instrument that precisely removes on-axis starlight allowing for high contrast imaging at small angular separation from the star, a crucial capability for direct detection and characterization of exoplanets and circumstellar disks. Telescopes with aperture obstructions, such as secondary mirrors and spider support structures, require advanced coronagraph designs to provide adequate starlight suppression. Aims. We introduce a phase-only Lyot-plane optic to the vortex coronagraph, which offers improved contrast performance on telescopes with complicated apertures. Potential solutions for the European Extremely Large Telescope (E-ELT) are described. Methods. Adding a Lyot-plane phase mask r...
For the imaging of faint companions, phase mask coronagraphy has the dual advantages of a small inne...
Phase-mask coronagraph holds the ability to detect exoplanets very close to their parent star. We re...
Direct imaging of exoplanets or circumstellar disk material requires extreme contrast at the 10^(−6)...
Context. The vortex coronagraph is an optical instrument that precisely removes on-axis starlight al...
The vortex coronagraph is an optical instrument that precisely removes on-axis starlight allowing fo...
We present methods for optimizing pupil and focal plane optical elements that improve the performanc...
The vortex coronagraph is one of the most promising coronagraphs for high-contrast imaging because o...
Phase mask coronagraphs such as the vortex coronagraph are meant to be used with the circular clear ...
Vortex coronagraphs are an attractive solution for imaging exoplanets with future space telescopes d...
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant cor...
High-contrast imaging is the primary path to the direct detection and characterization of Earth-like...
The Habitable Worlds Observatory mission will require coronagraphs capable of achieving contrasts of...
The vortex coronagraph (VC) is a new generation small inner working angle (IWA) coronagraph currentl...
Context. Future instruments need efficient coronagraphs over large spectral ranges to enable broadba...
Context. With a clear circular aperture, the vortex coronagraph perfectly cancels an on-axis point s...
For the imaging of faint companions, phase mask coronagraphy has the dual advantages of a small inne...
Phase-mask coronagraph holds the ability to detect exoplanets very close to their parent star. We re...
Direct imaging of exoplanets or circumstellar disk material requires extreme contrast at the 10^(−6)...
Context. The vortex coronagraph is an optical instrument that precisely removes on-axis starlight al...
The vortex coronagraph is an optical instrument that precisely removes on-axis starlight allowing fo...
We present methods for optimizing pupil and focal plane optical elements that improve the performanc...
The vortex coronagraph is one of the most promising coronagraphs for high-contrast imaging because o...
Phase mask coronagraphs such as the vortex coronagraph are meant to be used with the circular clear ...
Vortex coronagraphs are an attractive solution for imaging exoplanets with future space telescopes d...
Current state-of-the-art high contrast imaging instruments take advantage of a number of elegant cor...
High-contrast imaging is the primary path to the direct detection and characterization of Earth-like...
The Habitable Worlds Observatory mission will require coronagraphs capable of achieving contrasts of...
The vortex coronagraph (VC) is a new generation small inner working angle (IWA) coronagraph currentl...
Context. Future instruments need efficient coronagraphs over large spectral ranges to enable broadba...
Context. With a clear circular aperture, the vortex coronagraph perfectly cancels an on-axis point s...
For the imaging of faint companions, phase mask coronagraphy has the dual advantages of a small inne...
Phase-mask coronagraph holds the ability to detect exoplanets very close to their parent star. We re...
Direct imaging of exoplanets or circumstellar disk material requires extreme contrast at the 10^(−6)...