Design and first-light performance of TES bolometer arrays for submillimeter spectroscopy with ZEUS-2

Carl Ferkinhoff, Thomas Nikola, Stephen C. Parshley, Gordon J. Stacey, Kent D. Irwin, Hsiao Mei Cho, Mike Niemack, Mark Halpern, Matthew Hasselfield, Mandana Amiri

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

1 Scopus citations

Abstract

We have recently commissioned the 2nd generation redshift(z) and Early Universe Spectrometer (ZEUS-2) at the Caltech Submillimeter Observatory. ZEUS-2 is a long-slit grating spectrometer (R~1000) for observations in the submillimeter wavelength regime that is optimized for observations of redshifted far-infrared spectral lines from galaxies in the early universe. Here we report on the design and first light performance of the first TES bolometer array installed in ZEUS-2. This array features 280 pixels each 1.26 mm square and arranged to provide ∼35 pixel spectra at ∼8 spatial positions on the sky. A 1/4-wavelength back short of 100 micron and gold mesh absorber matching the impedance of free space provides near 90% quantum efficiency for the 350 and 450 micron telluric windows. Array readout is done using SQUID multiplexers and the Multichannel Electronics. We will also report on the progress to install two additional arrays tuned to provide similar performance across the remaining telluric windows between 200-850 microns.

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
DOIs
StatePublished - Dec 1 2012
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI - Amsterdam, Netherlands
Duration: Jul 3 2012Jul 6 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8452
ISSN (Print)0277-786X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI
CountryNetherlands
CityAmsterdam
Period7/3/127/6/12

All Science Journal Classification (ASJC) codes

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

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    Ferkinhoff, C., Nikola, T., Parshley, S. C., Stacey, G. J., Irwin, K. D., Cho, H. M., Niemack, M., Halpern, M., Hasselfield, M., & Amiri, M. (2012). Design and first-light performance of TES bolometer arrays for submillimeter spectroscopy with ZEUS-2. In Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI [805207] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8452). https://doi.org/10.1117/12.927237