Design of the Kinetic Inductance Detector Based Focal Plane Assembly for the Terahertz Intensity Mapper

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

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We report on the kinetic inductance detector (KID) array focal plane assembly design for the Terahertz Intensity Mapper (TIM). Each of the 2 arrays consists of 4 wafer-sized dies (quadrants), and the overall assembly must satisfy thermal and mechanical requirements, while maintaining high optical efficiency and a suitable electromagnetic environment for the KIDs. In particular, our design manages to strictly maintain a 50 μm air gap between the array and the horn block. We have prototyped and are now testing a sub-scale assembly which houses a single quadrant for characterization before integration into the full array. The initial test result shows a >95% yield, indicating a good performance of our TIM detector packaging design.

Original languageEnglish (US)
Pages (from-to)953-961
Number of pages9
JournalJournal of Low Temperature Physics
Volume209
Issue number5-6
DOIs
StatePublished - Dec 2022

Keywords

  • Aluminum
  • Astronomy
  • Balloon
  • Kinetic inductance detector
  • Line intensity mapping
  • Spectroscopy

ASJC Scopus subject areas

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

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