Characterization of aerogel scattering filters for astronomical telescopes

Alyssa Barlis; Stefan Arseneau; Charles L. Bennett; Thomas Essinger-Hileman; Haiquan Guo; Kyle R. Helson; Tobias Marriage; Manuel A. Quijada; Ariel E. Tokarz; Stephanie L. Vivod; Edward J. Wollack

doi:10.1117/12.2627341

31 August 2022 Characterization of aerogel scattering filters for astronomical telescopes

Alyssa Barlis, Stefan Arseneau, Charles L. Bennett, Thomas Essinger-Hileman, Haiquan Guo, Kyle R. Helson, Tobias Marriage, Manuel A. Quijada, Ariel E. Tokarz, Stephanie L. Vivod, Edward J. Wollack

Author Affiliations +

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 121902I (2022) https://doi.org/10.1117/12.2627341
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Conference Poster

Abstract

We have developed a suite of novel infrared-blocking filters made by embedding scattering particles in a polymer aerogel substrate. Our developments allow us to tune the spectral performance of the filters based on both the composition of the base aerogel material and the properties of the scattering particles. Our filters are targeted for use in a variety of applications, from ground-based CMB experiments to planetary science probes. We summarize the formulations we have fabricated and tested to date, including several polyimide base aerogel formulations incorporating a range of size distributions of diamond scattering particles. We also describe the spectral characterization techniques used to measure the filters’ optical properties, including the development of a mm-wave Fourier transform spectrometer testbed.

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Alyssa Barlis, Stefan Arseneau, Charles L. Bennett, Thomas Essinger-Hileman, Haiquan Guo, Kyle R. Helson, Tobias Marriage, Manuel A. Quijada, Ariel E. Tokarz, Stephanie L. Vivod, and Edward J. Wollack "Characterization of aerogel scattering filters for astronomical telescopes", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 121902I (31 August 2022); https://doi.org/10.1117/12.2627341

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