Characterization of aerogel scattering filters for astronomical telescopes
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.
Keywords
Cite
@article{arxiv.2208.04257,
title = {Characterization of aerogel scattering filters for astronomical telescopes},
author = {Alyssa Barlis and Stefan Arseneau and Charles L. Bennett and Thomas Essinger-Hileman and Haiquan Guo and Kyle R. Helson and Tobias Marriage and Manuel A. Quijada and Ariel E. Tokarz and Stephanie L. Vivod and Edward J. Wollack},
journal= {arXiv preprint arXiv:2208.04257},
year = {2022}
}
Comments
Presented at SPIE Astronomical Telescopes & Instrumentation Conference 2022