Design and simulation of non-redundant aperture masks for SCALES

Mackenzie Lach; Stephanie Sallum; Ravinder Banyal; Natalie Batalha; Natasha Batalha; Geoff Blake; Timothy Brandt; Zackery Briesemeister; Aditi Desai; Josh Eisner; Wen-fai Fong; Tom Greene; Mitsuhiko Honda; Isabel Kain; Charlie Kilpatrick; Katherine de Kleer; Michael Liu; Bruce Macintosh; Raquel Martinez; Dimitri Mawet; Brittany Miles; Caroline Morley; Imke de Pater; Diana Powell; Patrick Sheehan; Andrew Skemer; Justin Spilker; Deno Stelter; Jordan Stone; Arun Surya; Sivarani Thirupathi; Kevin Wagner; Yifan Zhou

doi:10.1117/12.3019285

30 September 2024 Design and simulation of non-redundant aperture masks for SCALES

Mackenzie Lach, Stephanie Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Timothy Brandt, Zackery Briesemeister, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Katherine de Kleer, Michael Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Imke de Pater, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, Yifan Zhou

Author Affiliations +

Proceedings Volume 13095, Optical and Infrared Interferometry and Imaging IX; 130950Y (2024) https://doi.org/10.1117/12.3019285
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

The Slicer Combined with an Array of Lenslets for Exoplanet Spectroscopy (SCALES) will be the first facility-class integral field spectrograph (IFS) to operate between 2-5 microns. Expected to see first light at W. M. Keck Observatory in 2025, SCALES will extend the parameter space of directly imaged exoplanets to those that are colder, and thus older. SCALES will perform high-contrast imaging of these objects and other targets including protoplanetary disks, Solar System objects, and supernovae. Interferometric techniques such as non-redundant aperture masking (NRM) have been demonstrated to improve spatial resolution at high contrasts. Aperture masking turns a telescope into an interferometer by blocking the pupil with an opaque mask with some number of circular holes. Here we present the final designs for the non-redundant masks that will be integrated into SCALES. We outline their design, manufacturing, characterization, and integration processes. We also present the injection and recovery of several planet and disk companion models into mock SCALES science frames to assess the performance of the selected designs.

Conference Presentation

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Mackenzie Lach, Stephanie Sallum, Ravinder Banyal, Natalie Batalha, Natasha Batalha, Geoff Blake, Timothy Brandt, Zackery Briesemeister, Aditi Desai, Josh Eisner, Wen-fai Fong, Tom Greene, Mitsuhiko Honda, Isabel Kain, Charlie Kilpatrick, Katherine de Kleer, Michael Liu, Bruce Macintosh, Raquel Martinez, Dimitri Mawet, Brittany Miles, Caroline Morley, Imke de Pater, Diana Powell, Patrick Sheehan, Andrew Skemer, Justin Spilker, Deno Stelter, Jordan Stone, Arun Surya, Sivarani Thirupathi, Kevin Wagner, and Yifan Zhou "Design and simulation of non-redundant aperture masks for SCALES", Proc. SPIE 13095, Optical and Infrared Interferometry and Imaging IX, 130950Y (30 September 2024); https://doi.org/10.1117/12.3019285

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