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

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

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 α >95% yield, indicating a good performance of our TIM detector packaging design.

Additional Information

TIM is supported by NASA under grant 80NSSC19K1242, issued through the Science Mission Directorate. R.M.J. Janssen is supported by an appointment to the NASA Postdoctoral Program at the NASA Jet Propulsion Laboratory, administered by Oak Ridge Associated Universities under contract with NASA. Part of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004).

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Resource type: Journal Article
Publisher: Springer
Published in: Journal of Low Temperature Physics, 209(5), 953-961, ISSN: 0022-2291.