Bolocam: A millimeter-wave bolometric camera

Jason Glenn, James J. Bock, Goutam Chattopadhyay, Samantha F. Edgington, Andrew E. Lange, Jonas Zmuidzinas, Philip Mauskopf, Brooks Rownd, Lunming Yuen, Peter A R Ade

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

77 Scopus citations


We describe the design of Bolocam, a bolometric camera for millimeter-wave observations at the Caltech Submillimeter Observatory. Bolocam will have 144 diffraction-limited detectors operating at 300 mK, an 8 arcminute field of view, and a sky noise limited NEFD of approximately 35 mJy Hz -1/2 per pixel at λ = 1.4 mm. Observations will be possible at one of λ = 1.1., 1.4, or 2.1 mm per observing run. The detector array consists of sensitive NTD Ge thermistors bonded to silicon nitride micromesh absorbers patterned on a single wafer of silicon. This is a new technology in millimeter-wave detector array construction. To increase detector packing density, the feed horns will be spaced by 1.26 f λ (at λ = 1.4 mm), rather than the conventional 2 fλ. DC stable read out electronics will enable on-the-fly mapping and drift scanning. We will use Bolocam to map Galactic dust emission, to search for protogalaxies, and to observe the Sunyaev- Zel'dovich effect toward galaxy clusters.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Number of pages9
StatePublished - 1998
Externally publishedYes
EventAdvanced Technology MMW, Radio, and Terahertz Telescopes - Kona, HI, United States
Duration: Mar 26 1998Mar 26 1998


OtherAdvanced Technology MMW, Radio, and Terahertz Telescopes
Country/TerritoryUnited States
CityKona, HI


  • Bolometers
  • Millimeter-wave

ASJC Scopus subject areas

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


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