Design and characterization of the MUSCAT detectors

V. Gomez-Rivera, P. A.R. Ade, P. S. Barry, T. L.R. Brien, E. Castillo-Dominguez, D. Ferrusca, P. Hargrave, J. L. Hernandez-Rebollar, A. Hornsby, D. Hughes, J. M. Jauregui-Garcia, P. Mauskopf, D. Murias, A. Papageorgiou, E. Pascale, A. Perez, I. Rodriguez, S. Rowe, M. Tapia, C. TuckerM. Velazquez, S. Ventura, S. Doyle

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

2 Scopus citations


MUSCAT is a second-generation continuum camera for the Large Millimeter Telescope (LMT) "Alfonso Serrano", to observe at the 1.1 mm atmospheric window. The camera has 1500 background-limited, horn-coupled lumped-element kinetic inductance detectors (LEKIDs) split across six arrays operating at 130-mK. The detector design for MUSCAT is based on a large-volume, double-meander geometry used as the inductive and two-polarization absorbing section of the LEKID resonator. In this paper we present the optical coupling of the meander to a choked waveguide output, the microwave design of the LEKID architecture, the device fabrication process and results demonstrating the detector sensitivity under a range of optical loads. Also presented are the performance of an aluminum absorbing layer used to minimize the optical cross-Talk between detectors.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X
EditorsJonas Zmuidzinas, Jian-Rong Gao
ISBN (Electronic)9781510636934
StatePublished - 2020
Externally publishedYes
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 2020 - Virtual, Online, United States
Duration: Dec 14 2020Dec 22 2020

Publication series

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


ConferenceMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X 2020
Country/TerritoryUnited States
CityVirtual, Online


  • Kinetic Inductance Detectors
  • Noise Equivalent Power
  • Superconductor Resonators

ASJC Scopus subject areas

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


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