Implementation of a broadband focal plane estimator for high-contrast dark zones

Susan F. Redmond; Laurent Pueyo; Leonid Pogorelyuk; James Noss; Scott D. Will; Iva Laginja; N. Jeremy Kasdin; Marshall D. Perrin; Rémi Soummer

doi:10.1117/12.2594620

1 September 2021 Implementation of a broadband focal plane estimator for high-contrast dark zones

Susan F. Redmond, Laurent Pueyo, Leonid Pogorelyuk, James Noss, Scott D. Will, Iva Laginja, N. Jeremy Kasdin, Marshall D. Perrin, Rémi Soummer

Author Affiliations +

Proceedings Volume 11823, Techniques and Instrumentation for Detection of Exoplanets X; 118231Q (2021) https://doi.org/10.1117/12.2594620
Event: SPIE Optical Engineering + Applications, 2021, San Diego, California, United States

Abstract

The characterization of exoplanets’ atmospheres using direct imaging spectroscopy requires high-contrast over a wide wavelength range. We study a recently proposed focal plane wavefront estimation algorithm that exclusively uses broadband images to estimate the electric field. This approach therefore reduces the complexity and observational overheads compared to traditional single wavelength approaches. The electric field is estimated as an incoherent sum of monochromatic intensities with the pair-wise probing technique. This paper covers the detailed implementation of the algorithm and an application to the High-contrast Imager for Complex Aperture Telescopes (HiCAT) testbed with the goal to compare the performance between the broadband and traditional narrowband filter approaches.

Citation Download Citation

Susan F. Redmond, Laurent Pueyo, Leonid Pogorelyuk, James Noss, Scott D. Will, Iva Laginja, N. Jeremy Kasdin, Marshall D. Perrin, and Rémi Soummer "Implementation of a broadband focal plane estimator for high-contrast dark zones", Proc. SPIE 11823, Techniques and Instrumentation for Detection of Exoplanets X, 118231Q (1 September 2021); https://doi.org/10.1117/12.2594620

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