Design and performance of SuperSpec: An on-chip, KID-based, mm-wavelength spectrometer

E. Shirokoff, P. S. Barry, C. M. Bradford, G. Chattopadhyay, P. Day, S. Doyle, S. Hailey-Dunsheath, M. I. Hollister, A. Kovács, H. G. Leduc, C. M. McKenney, Philip Mauskopf, H. T. Nguyen, R. O'Brient, S. Padin, T. J. Reck, L. J. Swenson, C. E. Tucker, J. Zmuidzinas

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


SuperSpec is an ultra-compact spectrometer-on-a-chip for mm and submm wavelength astronomy. Its very small size, wide spectral bandwidth, and highly multiplexed detector readout will enable construction of powerful multi-object spectrometers for observations of galaxies at high redshift. SuperSpec is a filter bank with planar, lithographed, superconducting transmission line resonator filters and lumped-element kinetic inductance detectors made from Titanium Nitride. We have built an 81 detector prototype that operates in the 195-310 GHz band. The prototype has a wide-band metal feed horn with a transition to microstrip that feeds the filter bank. The prototype has demonstrated optical filter bank channels with a range of resolving powers from 300 to 700, measured fractional frequency noise of 10-17 Hz -1 at 1 Hz.

Original languageEnglish (US)
Pages (from-to)657-662
Number of pages6
JournalJournal of Low Temperature Physics
Issue number5-6
StatePublished - Sep 2014


  • Kinetic inductance detectors
  • Millimeter-wavelength
  • Resonators
  • Spectroscopy

ASJC Scopus subject areas

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


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