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 journalArticle

20 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

Cite this

Shirokoff, E., Barry, P. S., Bradford, C. M., Chattopadhyay, G., Day, P., Doyle, S., Hailey-Dunsheath, S., Hollister, M. I., Kovács, A., Leduc, H. G., McKenney, C. M., Mauskopf, P., Nguyen, H. T., O'Brient, R., Padin, S., Reck, T. J., Swenson, L. J., Tucker, C. E., & Zmuidzinas, J. (2014). Design and performance of SuperSpec: An on-chip, KID-based, mm-wavelength spectrometer. Journal of Low Temperature Physics, 176(5-6), 657-662.