Status of SuperSpec: A broadband, on-chip millimeter-wave spectrometer

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

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

9 Scopus citations

Abstract

SuperSpec is a novel on-chip spectrometer we are developing for multi-object, moderate resolution (R = 100 â' 500), large bandwidth (∼1.65:1) submillimeter and millimeter survey spectroscopy of high-redshift galaxies. The spectrometer employs a filter bank architecture, and consists of a series of half-wave resonators formed by lithographically-patterned superconducting transmission lines. The signal power admitted by each resonator is detected by a lumped element titanium nitride (TiN) kinetic inductance detector (KID) operating at 100-200 MHz. We have tested a new prototype device that is more sensitive than previous devices, and easier to fabricate. We present a characterization of a representative R = 282 channel at f = 236 GHz, including measurements of the spectrometer detection efficiency, the detector responsivity over a large range of optical loading, and the full system optical efficiency. We outline future improvements to the current system that we expect will enable construction of a photon-noise-limited R = 100 filter bank, appropriate for a line intensity mapping experiment targeting the [CII] 158 1/4m transition during the Epoch of Reionization.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
EditorsJonas Zmuidzinas, Wayne S. Holland
PublisherSPIE
ISBN (Electronic)9780819496218
DOIs
StatePublished - 2014
Externally publishedYes
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII - Montreal, Canada
Duration: Jun 24 2014Jun 27 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9153
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII
CountryCanada
CityMontreal
Period6/24/146/27/14

Keywords

  • Kinetic Inductance Detector
  • Millimeter-Wave
  • Spectroscopy
  • Titanium Nitride

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Status of SuperSpec: A broadband, on-chip millimeter-wave spectrometer'. Together they form a unique fingerprint.

  • Cite this

    Hailey-Dunsheath, S., Shirokoff, E., Barry, P. S., Bradford, C. M., Chattopadhyay, G., Day, P., Doyle, S., Hollister, M., Kovacs, A., Leduc, H. G., Mauskopf, P., McKenney, C. M., Monroe, R., O'Brient, R., Padin, S., Reck, T., Swenson, L., Tucker, C. E., & Zmuidzinas, J. (2014). Status of SuperSpec: A broadband, on-chip millimeter-wave spectrometer. In J. Zmuidzinas, & W. S. Holland (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VII [91530M] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9153). SPIE. https://doi.org/10.1117/12.2057229