Absorber Design and Optimization of Kinetic Inductance Detectors for the Terahertz Intensity Mapper

R. Nie, R. M.J. Janssen, C. M. Bradford, J. P. Filippini, S. Hailey-Dunsheath, C. M. McKenney, J. E. Aguirre, J. S. Bracks, A. J. Corso, J. Fu, C. Groppi, J. Hoh, R. P. Keenan, L. J. Liu, I. N. Lowe, D. P. Marrone, P. Mauskopf, J. Redford, I. Trumper, J. D. Vieira

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We discuss the design and optimization of the absorber for Terahertz Intensity Mapper, a balloon-borne kinetic inductance detector spectrometer. The novel “chain-link” absorber design offers excellent performance, independent optimization for both polarizations, and robust fabrication. Electromagnetic simulations indicate in-band absorption efficiency over ∼ 90 % in both linear polarization modes. DC measurements on different film thicknesses indicate the desired sheet resistance.

Original languageEnglish (US)
Pages (from-to)525-533
Number of pages9
JournalJournal of Low Temperature Physics
Volume209
Issue number3-4
DOIs
StatePublished - Nov 2022

Keywords

  • Electromagnetic simulations
  • Kinetic inductance detector
  • Terahertz Intensity Mapper

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics

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