Snik, Frans and Otten, Gilles and Kenworthy, Matthew and Mawet, Dimitri and Escuti, Michael (2014) Combining vector-phase coronagraphy with dual-beam polarimetry. In: Ground-based and Airborne Instrumentation for Astronomy V. Proceedings of SPIE. No.9147. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 91477U. ISBN 9780819496157. https://resolver.caltech.edu/CaltechAUTHORS:20150519-145718105
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Abstract
Utilizing the so-called vector phase of polarized light, both focal-plane coronagraphs (e.g. the Vector Vortex Coronagraph) and pupil-plane coronagraphs (e.g. the vector Apodizing Phase Plate) are powerful components for high-contrast imaging. These coronagraphs can be built and optimized with polarization techniques and liquid crystal technology, that enable patterning at the micron level and furnish broad-band performance. The contrast between the residual starlight and the (polarized) reflected light off exoplanets can be further bridged by incorporating sensitive, dual-beam imaging polarimetry. As vector-phase coronagraphs use polarizers to enhance their performance, we introduce optimally integrated solutions that combine advanced coronagraphy and polarimetry. For both the VVC and the vAPP we present polarization beam-splitting concepts, with polarization analyzers either behind or in front of the coronagraphic optics. We discuss design solutions for the implementation of polarization optics, and set the stage for a trade-off between the improvement of coronagraphic and polarimetric performance and the ensuing degradation on the high-contrast imaging performance due to wavefront errors.
Item Type: | Book Section | |||||||||
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Additional Information: | © 2014 SPIE. | |||||||||
Subject Keywords: | coronagraphy, polarimetry, vector phase, high-contrast imaging | |||||||||
Series Name: | Proceedings of SPIE | |||||||||
Issue or Number: | 9147 | |||||||||
Record Number: | CaltechAUTHORS:20150519-145718105 | |||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150519-145718105 | |||||||||
Official Citation: | Frans Snik ; Gilles Otten ; Matthew Kenworthy ; Dimitri Mawet and Michael Escuti "Combining vector-phase coronagraphy with dual-beam polarimetry", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91477U (August 6, 2014); doi:10.1117/12.2055452; http://dx.doi.org/10.1117/12.2055452 | |||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
ID Code: | 57674 | |||||||||
Collection: | CaltechAUTHORS | |||||||||
Deposited By: | Ruth Sustaita | |||||||||
Deposited On: | 19 May 2015 23:52 | |||||||||
Last Modified: | 03 Oct 2019 08:27 |
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