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Proceedings Paper

On-sky demonstration of the SuperSpec millimeter-wave spectrometer (Conference Presentation)
Author(s): Kirit S. Karkare; Peter S. Barry; C. Matt Bradford; Scott Chapman; George Che; Jason Glenn; Sam Gordon; Steven Hailey-Dunsheath; Matthew Hollister; Attila Kovacs; Henry G. Leduc; Philip Mauskopf; Ryan McGeehan; Chris McKenney; Theodore Reck; Joseph Redford; Erik Shirokoff; Carole Tucker; Jordan Turner; Samantha Walker; Jordan Wheeler; Jonas Zmuidzinas
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Paper Abstract

SuperSpec is an on-chip filter-bank spectrometer designed for wideband moderate-resolution spectroscopy at millimeter and submillimeter wavelengths. Employing TiN kinetic inductance detectors, the device has demonstrated noise performance suitable for photon noise limited ground-based observations at excellent millimeter-wave observing sites. In these proceedings we present a demonstration instrument featuring six independent single-polarization SuperSpec chips, covering 190-310 GHz with 300 channels. We summarize spectrometer performance, describe the cryostat and optical coupling, and present the readout and telescope control system. In an initial deployment to the Large Millimeter Telescope, we plan to observe submillimeter galaxies in [CII] emission at redshifts 5 < z < 9 and CO emission from lower-redshift galaxies. Real on-sky performance will inform the design of the next generation of instruments using large numbers of SuperSpec devices, which could include multi-object spectrometers or line intensity mapping experiments that target [CII] during the Epoch of Reionization.

Paper Details

Date Published: 10 July 2018
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Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107081R (10 July 2018); doi: 10.1117/12.2313786
Show Author Affiliations
Kirit S. Karkare, The Univ. of Chicago (United States)
Peter S. Barry, The Univ. of Chicago (United States)
C. Matt Bradford, Caltech (United States)
Scott Chapman, Dalhousie Univ. (Canada)
George Che, Arizona State Univ. (United States)
Jason Glenn, Univ. of Colorado Boulder (United States)
Sam Gordon, Arizona State Univ. (United States)
Steven Hailey-Dunsheath, Caltech (United States)
Matthew Hollister, Caltech (United States)
Attila Kovacs, Caltech (United States)
Henry G. Leduc, Jet Propulsion Lab. (United States)
Philip Mauskopf, Arizona State Univ. (United States)
Ryan McGeehan, The Univ. of Chicago (United States)
Chris McKenney, National Institute of Standards and Technology (United States)
Theodore Reck, Jet Propulsion Lab. (United States)
Joseph Redford, Caltech (United States)
Erik Shirokoff, The Univ. of Chicago (United States)
Carole Tucker, Cardiff Univ. (United Kingdom)
Jordan Turner, Univ. of Wyoming (United States)
Samantha Walker, Univ. of Colorado Boulder (United States)
Jordan Wheeler, Univ. of Colorado Boulder (United States)
Jonas Zmuidzinas, Caltech (United States)


Published in SPIE Proceedings Vol. 10708:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Jonas Zmuidzinas; Jian-Rong Gao, Editor(s)

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