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Title: Simons Observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics

Abstract

Here we present the design, fabrication, and measured performance of metamaterial antireflection cuttings (ARCs) for large-format alumina filters operating over more than an octave of bandwidth to be deployed at the Simons Observatory (SO). The ARC consists of subwavelength features diced into the optic’s surface using a custom dicing saw with near-micrometer accuracy. The designs achieve percent-level control over reflections at angles of incidence up to 20°. The ARCs were demonstrated on four 42 cm diameter filters covering the 75 to 170 GHz band and a 50 mm diameter prototype covering the 200 to 300 GHz band. The reflection and transmission of these samples were measured using a broadband coherent source that covers frequencies from 20 GHz to 1.2 THz. These measurements demonstrate percent-level control over reflectance across the targeted pass-bands and a rapid reduction in transmission as the wavelength approaches the length scale of the metamaterial structure where scattering dominates the optical response. The latter behavior enables use of the metamaterial ARC as a scattering filter in this limit.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [3];  [4]; ORCiD logo [5]; ORCiD logo [5]; ORCiD logo [1]; ORCiD logo [6]; ORCiD logo [7]; ORCiD logo [8]
+ Show Author Affiliations
  1. Univ. of Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  2. Univ. of Chicago, IL (United States)
  3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States)
  4. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  5. Univ. of Pennsylvania, Philadelphia, PA (United States)
  6. Tor Vergata Univ. of Rome (Italy)
  7. Cardiff Univ., Wales (United Kingdom)
  8. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); Simons Foundation; National Aeronautics and Space Administration (NASA); National Science Foundation (NSF)
OSTI Identifier:
1881267
Report Number(s):
FERMILAB-PUB-22-569-PPD-V; arXiv:2208.02292
Journal ID: ISSN 1559-128X; oai:inspirehep.net:2134146; TRN: US2307820
Grant/Contract Number:  
AC02-07CH11359; 457687; 80NSSC21K0411; 1746045
Resource Type:
Accepted Manuscript
Journal Name:
Applied Optics
Additional Journal Information:
Journal Volume: 61; Journal Issue: 30; Journal ID: ISSN 1559-128X
Publisher:
Optical Society of America
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Golec, Joseph E., Sutariya, Shreya, Jackson, Rebecca, Zimmerman, Jerry, Dicker, Simon R., Iuliano, Jeffrey, McMahon, Jeff, Puglisi, Giuseppe, Tucker, Carole, and Wollack, Edward J. Simons Observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics. United States: N. p., 2022. Web. doi:10.1364/ao.472459.
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Golec, Joseph E., Sutariya, Shreya, Jackson, Rebecca, Zimmerman, Jerry, Dicker, Simon R., Iuliano, Jeffrey, McMahon, Jeff, Puglisi, Giuseppe, Tucker, Carole, & Wollack, Edward J. Simons Observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics. United States. https://doi.org/10.1364/ao.472459
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Golec, Joseph E., Sutariya, Shreya, Jackson, Rebecca, Zimmerman, Jerry, Dicker, Simon R., Iuliano, Jeffrey, McMahon, Jeff, Puglisi, Giuseppe, Tucker, Carole, and Wollack, Edward J. Tue . "Simons Observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics". United States. https://doi.org/10.1364/ao.472459. https://www.osti.gov/servlets/purl/1881267.
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@article{osti_1881267,
title = {Simons Observatory: broadband metamaterial antireflection cuttings for large-aperture alumina optics},
author = {Golec, Joseph E. and Sutariya, Shreya and Jackson, Rebecca and Zimmerman, Jerry and Dicker, Simon R. and Iuliano, Jeffrey and McMahon, Jeff and Puglisi, Giuseppe and Tucker, Carole and Wollack, Edward J.},
abstractNote = {Here we present the design, fabrication, and measured performance of metamaterial antireflection cuttings (ARCs) for large-format alumina filters operating over more than an octave of bandwidth to be deployed at the Simons Observatory (SO). The ARC consists of subwavelength features diced into the optic’s surface using a custom dicing saw with near-micrometer accuracy. The designs achieve percent-level control over reflections at angles of incidence up to 20°. The ARCs were demonstrated on four 42 cm diameter filters covering the 75 to 170 GHz band and a 50 mm diameter prototype covering the 200 to 300 GHz band. The reflection and transmission of these samples were measured using a broadband coherent source that covers frequencies from 20 GHz to 1.2 THz. These measurements demonstrate percent-level control over reflectance across the targeted pass-bands and a rapid reduction in transmission as the wavelength approaches the length scale of the metamaterial structure where scattering dominates the optical response. The latter behavior enables use of the metamaterial ARC as a scattering filter in this limit.},
doi = {10.1364/ao.472459},
journal = {Applied Optics},
number = 30,
volume = 61,
place = {United States},
year = {Tue Oct 11 00:00:00 EDT 2022},
month = {Tue Oct 11 00:00:00 EDT 2022}
}
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https://doi.org/10.1364/ao.472459
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