The Experiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM)

P. A.R. Ade, C. J. Anderson, E. M. Barrentine, N. G. Bellis, A. D. Bolatto, P. C. Breysse, B. T. Bulcha, G. Cataldo, J. A. Connors, P. W. Cursey, N. Ehsan, H. C. Grant, T. M. Essinger-Hileman, L. A. Hess, M. O. Kimball, A. J. Kogut, A. D. Lamb, L. N. Lowe, P. D. Mauskopf, J. McMahonM. Mirzaei, S. H. Moseley, J. W. Mugge-Durum, O. Noroozian, U. Pen, A. R. Pullen, S. Rodriguez, P. J. Shirron, R. S. Somerville, T. R. Stevenson, E. R. Switzer, C. Tucker, E. Visbal, C. G. Volpert, E. J. Wollack, S. Yang

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a cryogenic balloon-borne instrument that will survey galaxy and star formation history over cosmological timescales. Rather than identifying individual objects, EXCLAIM will be a pathfinder to demonstrate an intensity mapping approach, which measures the cumulative redshifted line emission. EXCLAIM will operate at 420–540 GHz with a spectral resolution R= 512 to measure the integrated CO and [CII] in redshift windows spanning 0 < z< 3.5. CO and [CII] line emissions are key tracers of the gas phases in the interstellar medium involved in star formation processes. EXCLAIM will shed light on questions such as why the star formation rate declines at z< 2 , despite continued clustering of the dark matter. The instrument will employ an array of six superconducting integrated grating-analog spectrometers (μ-Spec) coupled to microwave kinetic inductance detectors. Here we present an overview of the EXCLAIM instrument design and status.

Original languageEnglish (US)
Pages (from-to)1027-1037
Number of pages11
JournalJournal of Low Temperature Physics
Issue number3-4
StatePublished - May 1 2020


  • Galaxy evolution
  • Integrated spectrometers
  • Intensity mapping
  • MKID

ASJC Scopus subject areas

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


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