@inproceedings{39d7c164ac444e2a8d071db9d420e5b2,
title = "High-contrast Imaging at First Light of the GMT: Optimized coatings enabling high-throughput observations for GMagAO-X",
abstract = "The Giant Magellan Telescope's (GMT) high angular resolution and light collecting area are key in enabling its mission to characterize the atmospheres of rocky exoplanets. The high-contrast imaging instrument GMagAO-X will enable high-angular resolution due to its advanced wavefront sensing and control (WFS&C) techniques and coronagraphic imaging capability. However, to support high-fidelity WFS&C many intermediate optics are necessary. For commercially available coatings, the cumulative throughput of GMagAO-X ranges from 5-15%. To enhance the throughput of GMagAO-X we present a design study of customized optical coatings that enable a high broadband throughput. We implement these coatings in a polarization ray trace model of the GMagAO-X optics and investigate whether (chromatic) polarization aberrations are introduced by these coatings. These coating designs will increase the throughput of GMagAO-X significantly and bring the detection of bio-signatures within reach. We will present the results of our coating optimization strategy for high-contrast imaging instruments.",
keywords = "coatings, design, high-contrast imaging, high-contrast imaging",
author = "Ashcraft, {Jaren N.} and Haffert, {Sebastiaan Y.} and Laird Close and Olivier Durney and Jared Males and Maggie Kautz",
note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI 2024 ; Conference date: 16-06-2024 Through 22-06-2024",
year = "2024",
doi = "10.1117/12.3020707",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Ramon Navarro and Ralf Jedamzik",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI",
}