The PIAA-vortex coronagraph: a new coronagraph technology to maximize exo-Earth yields in the Astro2020 era

Kevin Fogarty; Rus Belikov; Dan Sirbu; Eugene Pluzhnik

doi:10.1117/12.2630638

27 August 2022 The PIAA-vortex coronagraph: a new coronagraph technology to maximize exo-Earth yields in the Astro2020 era

Kevin Fogarty, Rus Belikov, Dan Sirbu, Eugene Pluzhnik

Author Affiliations +

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 1218028 (2022) https://doi.org/10.1117/12.2630638
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Detecting and characterizing the atmospheres of terrestrial exoplanets is a primary goal of the proposed nextgeneration IR/O/UV mission recommended by Astro2020 decadal survey. Achieving this goal with direct imaging depends critically on developing coronagraph technology that maximizes the exoEarth yield. Stringent tradeoffs between low-order aberration sensitivity, inner working angle, and throughput have been one of the main limiting factors affecting the yield of coronagraph technologies for telescopes with complex apertures. We present preliminary hybrid PIAA-vortex coronagraph designs for obstructed apertures. PIAA-vortex designs can be used to close the yield gap between on-axis and off-axis telescopes, which in turn has the potential to translate to significant yield gains for future space missions. In our forthcoming publication, we will present further analysis of the PIAA-vortex along with the formalism for optimizing 2-D mirror shapes in the geometric-optics regime.

Conference Presentation

Citation Download Citation

Kevin Fogarty, Rus Belikov, Dan Sirbu, and Eugene Pluzhnik "The PIAA-vortex coronagraph: a new coronagraph technology to maximize exo-Earth yields in the Astro2020 era", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 1218028 (27 August 2022); https://doi.org/10.1117/12.2630638

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available