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

Journal of Low Temperature Physics（2022）

引用 3|浏览26

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摘要

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.

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关键词

Electromagnetic simulations,Kinetic inductance detector,Terahertz Intensity Mapper

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