High sensitivity 810 GHz SIS receivers at AST/RO

Patrick Pütz, S. Glenz, R. Teipen, T. Tils, N. Honingh, K. Jacobs, Abigali Hedden, C. Kulesa, Christopher Groppi, C. K. Walker

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

1 Citation (Scopus)

Abstract

In November 2003 the heterodyne receivers WANDA (polarization diplexed 492/810 GHz) and PoleSTAR (2 × 2 810 GHz array) of AST/RO (Antarctic Submillimeter Telescope and Remote Observatory, located at the South Pole) were upgraded with new 810 GHz SIS (Superconductor-Insulator-Superconductor) waveguide mixers from KOSMA. Profiting from device development for the HIFI (Heterodyne Instrument for the Far-Infrared) Band 2 SIS mixers of the Herschel Space Observatory, a factor of ≈ 2 improvement in receiver noise temperature (from 1100 K to 550 K DSB) was achieved with WANDA. The SIS mixer devices employ low-loss NbTiN-Al tuning circuits and are fabricated using electron beam lithographic junction area definition and CMP (Chemical Mechanical Polishing) of the tuning circuit dielectric. With the South Pole being one of the best possible sites for ground-based submillimeter astronomy, the 1.7m telescope currently makes AST/RO well suited for sensitive, large scale spectral line mapping at 810 GHz. Low atmospheric opacity (τ < 1) and, consequently, very low system noise temperatures (< 3000 K) are regularly achieved at 810 GHz, making AST/RO an extremely sensitive observatory at these frequencies. "First light" astronomical measurements made with the upgraded 810 GHz channel of WANDA towards the galactic HII region NGC 3576 in CO J = 7 → 6 (806.65 GHz) and the neutral carbon [CI] 3P 23 P 1 (809.3 GHz) lines are presented.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsJ. Zmuidzinas, W.S. Holland, S. Withington
Pages509-516
Number of pages8
Volume5498
DOIs
StatePublished - 2004
EventMillimeter and Submillimeter Detectors for Astronomy II - Glasgow, United Kingdom
Duration: Jun 23 2004Jun 25 2004

Other

OtherMillimeter and Submillimeter Detectors for Astronomy II
CountryUnited Kingdom
CityGlasgow
Period6/23/046/25/04

Fingerprint

SIS (superconductors)
Superconducting materials
observatories
noise temperature
receivers
sensitivity
Observatories
poles
tuning
telescopes
opacity
astronomy
polishing
Telescopes
line spectra
Poles
Tuning
electron beams
waveguides
Mixer circuits

Keywords

  • Far-infrared
  • Heterodyne
  • ISM
  • Mixer
  • Receiver
  • SIS
  • Spectral lines
  • Spectroscopy
  • Submillimeter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Pütz, P., Glenz, S., Teipen, R., Tils, T., Honingh, N., Jacobs, K., ... Walker, C. K. (2004). High sensitivity 810 GHz SIS receivers at AST/RO. In J. Zmuidzinas, W. S. Holland, & S. Withington (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 5498, pp. 509-516). [63] https://doi.org/10.1117/12.550894

High sensitivity 810 GHz SIS receivers at AST/RO. / Pütz, Patrick; Glenz, S.; Teipen, R.; Tils, T.; Honingh, N.; Jacobs, K.; Hedden, Abigali; Kulesa, C.; Groppi, Christopher; Walker, C. K.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / J. Zmuidzinas; W.S. Holland; S. Withington. Vol. 5498 2004. p. 509-516 63.

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

Pütz, P, Glenz, S, Teipen, R, Tils, T, Honingh, N, Jacobs, K, Hedden, A, Kulesa, C, Groppi, C & Walker, CK 2004, High sensitivity 810 GHz SIS receivers at AST/RO. in J Zmuidzinas, WS Holland & S Withington (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 5498, 63, pp. 509-516, Millimeter and Submillimeter Detectors for Astronomy II, Glasgow, United Kingdom, 6/23/04. https://doi.org/10.1117/12.550894
Pütz P, Glenz S, Teipen R, Tils T, Honingh N, Jacobs K et al. High sensitivity 810 GHz SIS receivers at AST/RO. In Zmuidzinas J, Holland WS, Withington S, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 5498. 2004. p. 509-516. 63 https://doi.org/10.1117/12.550894
Pütz, Patrick ; Glenz, S. ; Teipen, R. ; Tils, T. ; Honingh, N. ; Jacobs, K. ; Hedden, Abigali ; Kulesa, C. ; Groppi, Christopher ; Walker, C. K. / High sensitivity 810 GHz SIS receivers at AST/RO. Proceedings of SPIE - The International Society for Optical Engineering. editor / J. Zmuidzinas ; W.S. Holland ; S. Withington. Vol. 5498 2004. pp. 509-516
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