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Recent Progress in Vector Vortex Coronagraphy

Serabyn, E. and Mawet, D. and Wallace, J. K. and Liewer, K. and Trauger, J. and Moody, D. and Kern, B. (2011) Recent Progress in Vector Vortex Coronagraphy. In: UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts V. Proceedings of SPIE. No.8146. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 81460L. ISBN 978-0-8194-8756-8.

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The optical vortex coronagraph has great potential for enabling high-contrast observations very close to bright stars, and thus for reducing the size of space telescopes needed for exoplanet characterization missions. Here we discuss several recent developments in optical vortex coronagraphy. In particular, we describe multi-stage vortex configurations that allow the use of on-axis telescopes for high-contrast coronagraphy, and also enable the direct measurement of the amplitudes and phases of focal plane speckles. We also briefly describe recent laboratory demonstrations of the optical properties of the dual-stage vortex, and of the broadband performance of single stage vortex masks. Indeed, the demonstrated performance of the vector vortex phase masks already in hand, ≈ 10^(-8), is approximately that needed for an initial coronagraphic mission, such as an exoplanet explorer, aimed at detecting exozodiacal light and jovian exoplanets.

Item Type:Book Section
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Mawet, D.0000-0002-8895-4735
Additional Information:© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). September 14, 2011. This work was carried out at the Jet Propulsion Laboratory (JPL), California Institute of Technology (Caltech), under contract with the National Aeronautics and Space Administration (NASA).
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Subject Keywords:vortex, coronagraphy, exoplanets
Series Name:Proceedings of SPIE
Issue or Number:8146
Record Number:CaltechAUTHORS:20150526-093241463
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Official Citation:E. Serabyn ; D. Mawet ; J. K. Wallace ; K. Liewer ; J. Trauger, et al. "Recent progress in vector vortex coronagraphy", Proc. SPIE 8146, UV/Optical/IR Space Telescopes and Instruments: Innovative Technologies and Concepts V, 81460L (September 14, 2011); doi:10.1117/12.895267
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:57800
Deposited On:26 May 2015 19:57
Last Modified:10 Nov 2021 21:55

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