First laboratory tests of a triple-grating vector vortex coronagraph

David S. Doelman; Mireille Ouellet; Garreth Ruane; Michael Escuti; Sebastiaan Haffert; Frans Snik

doi:10.1117/12.2630070

29 August 2022 First laboratory tests of a triple-grating vector vortex coronagraph

David S. Doelman, Mireille Ouellet, Garreth Ruane, Michael Escuti, Sebastiaan Haffert, Frans Snik

Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 1218029 (2022) https://doi.org/10.1117/12.2630070
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

The vector vortex coronagraph is an ideal choice for the future space-based mission that is proposed by Astro2020. However, it requires polarization filtering and every observing band requires a different VVC. The triple-grating vector vortex coronagraph (TGVVC) aims to mitigate these limitations. In this paper, we present the first laboratory results of a TGVVC prototype using the High Contrast Imaging Testbed facility at NASA’s Jet Propulsion Laboratory. We describe the design and manufacturing, study the coronagraphic performance, the impact of polarization filtering on the dark zone contrast, and the appearance and impact of half-orders.

Conference Presentation

Citation Download Citation

David S. Doelman, Mireille Ouellet, Garreth Ruane, Michael Escuti, Sebastiaan Haffert, and Frans Snik "First laboratory tests of a triple-grating vector vortex coronagraph", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 1218029 (29 August 2022); https://doi.org/10.1117/12.2630070

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Coronagraphy

Polarization

Diffraction

Diffraction gratings

Prototyping

Exoplanets

Light scattering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years