Feedhorn development and scalability for Simons Observatory and beyond

Sara M. Simon, Joseph E. Golec, Aamir Ali, Jason Austermann, James A. Beall, Sarah Marie M. Bruno, Steve K. Choi, Kevin T. Crowley, Simon Dicker, Bradley Dober, Shannon M. Duff, Erin Healy, Charles A. Hill, Shuay Pwu Patty Ho, Johannes Hubmayr, Yaqiong Li, Marius Lungu, Jeff McMahon, John Orlowski-Scherer, Maria SalatinoSuzanne Staggs, Edward J. Wollack, Zhilei Xu, Ningfeng Zhu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

The Simons Observatory (SO) will measure the cosmic microwave background (CMB) in both temperature and polarization over a wide range of angular scales and frequencies from 27-270 GHz with unprecedented sensitivity. One technology for coupling light onto the ∼50 detector wafers that SO will field is spline-profiled feedhorns, which offer tunability between coupling efficiency and control of beam polarization leakage effects. We will present efforts to scale up feedhorn production for SO and their viability for future CMB experiments, including direct-machining metal feedhorn arrays and laser machining stacked Si arrays.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
EditorsJonas Zmuidzinas, Jian-Rong Gao
PublisherSPIE
ISBN (Print)9781510619692
DOIs
StatePublished - 2018
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States
Duration: Jun 12 2018Jun 15 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10708
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
CountryUnited States
CityAustin
Period6/12/186/15/18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Feedhorn
  • Simons Observatory
  • fabrication
  • production
  • scalability
  • spline-profiled

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