Advancements of the optical vortex coronagraph
2007; SPIE; Volume: 6693; Linguagem: Inglês
10.1117/12.734230
ISSN1996-756X
AutoresGrover A. Swartzlander, Erin L. Ford, Rukiah S. Abdul-Malik, Joshua Kim, Laird M. Close, Mary Anne Peters, David Palacios, Daniel W. Wilson,
Tópico(s)Stellar, planetary, and galactic studies
ResumoThe optical vortex coronagraph is a promising scheme for achieving high contrast low loss imaging of exoplanets as close as 2λ/ D from the parent star. We describe results using a high precision vortex lens that was fabricated using electron-beam lithography. We also report demonstrations of the coronagraph on a telescope employing a tip-tilt corrector.
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