LEKIDs Developments for mm-Wave Astronomy

M. Calvo, C. Hoffman, A. Benoit, N. Boudou, C. Hoarau, A. Monfardini, A. Cruciani, S. Doyle, P. Mauskopf, C. Giordano, H. LeDuc, M. Roesch, K. Schuster

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Microwave Kinetic Inductance Detectors (MKIDs) have recently drawn the attention of the low-temperature detectors community. Easy fabrication, high sensitivity, small time constants and most notably the intrinsic capability to frequency multiplexing open new possibilities to applications that need very large array sizes and/or high speed read-out. Lumped Element Kinetic Inductance Detectors (LEKIDs) designed and fabricated in our collaboration have already shown good on sky performances, but new developments are needed for future multi-thousands-pixels instruments. In this contribution we present such ongoing developments: a new LEKIDs design, optimized to be dual polarization sensitive; use of new materials such as TiN in order to reach better signal to noise ratios; new solutions to minimize the crosstalk between pixels in order to achieve a better control of the resonance positions in frequency space. We discuss present lab measurements of the optical performances and recent improvements of the read-out electronics.

Original languageEnglish (US)
Pages (from-to)379-385
Number of pages7
JournalJournal of Low Temperature Physics
Issue number3-4
StatePublished - Jun 2012
Externally publishedYes


  • Kinetic Inductance Detectors
  • Mm-wave astronomy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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