Ultrasensitive TES bolometers for space based FIR astronomy

D. Morozov, Philip Mauskopf, P. Ade, M. Bmijn, P. A J De Korte, H. Hoevers, M. Ridder, P. Khosropanah, B. Dirks, J. R. Gao

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

12 Citations (Scopus)

Abstract

We present results from the development of a background limited transition edge sensor (TES) bolometer for the wavelength band 30 - 60 μm. The bolometer consists of a Ti/Au superconducting thermometer and a Ta radiation absorber deposited on a 200μm x300μm membrane of SixNy suspended on long, narrow legs. This device is voltage biased and the current through the device is measured by a SQUID amplifier. The thermometer has transition temperature Tc = 108 mK and the device is operated from a 70 mK base plate. FIR radiation is coupled into a multimode horn with entrance aperture of 450 μm, length 4.5 mm and exit aperture of 45 μm, which feeds a metal integrating cavity containing the detector. The radiation band is defined by a pair of lowpass and highpass mesh filters in front of the horn. Here we present measurements of optical noise equivalent power (NEP), optical efficiency, dynamic range and time constant. The results show that measured TES detectors are close to meeting the requirement of the "Band 3" of SAFARI FTS imaging instrument [1] on the SPICA mission [2].

Original languageEnglish (US)
Title of host publicationAIP Conference Proceedings
Pages48-51
Number of pages4
Volume1185
DOIs
StatePublished - 2009
Externally publishedYes
Event13th International Workshop on Low Temperature Detectors, LTD-13 - Stanford, CA, United States
Duration: Jul 20 2009Jul 24 2009

Other

Other13th International Workshop on Low Temperature Detectors, LTD-13
CountryUnited States
CityStanford, CA
Period7/20/097/24/09

Fingerprint

bolometers
astronomy
thermometers
sensors
radiation
apertures
detectors
entrances
time constant
dynamic range
mesh
absorbers
amplifiers
transition temperature
membranes
filters
requirements
cavities
electric potential
wavelengths

Keywords

  • Far-IR detector
  • SiN
  • Tliermal transport
  • Transition edge sensor

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Morozov, D., Mauskopf, P., Ade, P., Bmijn, M., De Korte, P. A. J., Hoevers, H., ... Gao, J. R. (2009). Ultrasensitive TES bolometers for space based FIR astronomy. In AIP Conference Proceedings (Vol. 1185, pp. 48-51) https://doi.org/10.1063/1.3292385

Ultrasensitive TES bolometers for space based FIR astronomy. / Morozov, D.; Mauskopf, Philip; Ade, P.; Bmijn, M.; De Korte, P. A J; Hoevers, H.; Ridder, M.; Khosropanah, P.; Dirks, B.; Gao, J. R.

AIP Conference Proceedings. Vol. 1185 2009. p. 48-51.

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

Morozov, D, Mauskopf, P, Ade, P, Bmijn, M, De Korte, PAJ, Hoevers, H, Ridder, M, Khosropanah, P, Dirks, B & Gao, JR 2009, Ultrasensitive TES bolometers for space based FIR astronomy. in AIP Conference Proceedings. vol. 1185, pp. 48-51, 13th International Workshop on Low Temperature Detectors, LTD-13, Stanford, CA, United States, 7/20/09. https://doi.org/10.1063/1.3292385
Morozov D, Mauskopf P, Ade P, Bmijn M, De Korte PAJ, Hoevers H et al. Ultrasensitive TES bolometers for space based FIR astronomy. In AIP Conference Proceedings. Vol. 1185. 2009. p. 48-51 https://doi.org/10.1063/1.3292385
Morozov, D. ; Mauskopf, Philip ; Ade, P. ; Bmijn, M. ; De Korte, P. A J ; Hoevers, H. ; Ridder, M. ; Khosropanah, P. ; Dirks, B. ; Gao, J. R. / Ultrasensitive TES bolometers for space based FIR astronomy. AIP Conference Proceedings. Vol. 1185 2009. pp. 48-51
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AB - We present results from the development of a background limited transition edge sensor (TES) bolometer for the wavelength band 30 - 60 μm. The bolometer consists of a Ti/Au superconducting thermometer and a Ta radiation absorber deposited on a 200μm x300μm membrane of SixNy suspended on long, narrow legs. This device is voltage biased and the current through the device is measured by a SQUID amplifier. The thermometer has transition temperature Tc = 108 mK and the device is operated from a 70 mK base plate. FIR radiation is coupled into a multimode horn with entrance aperture of 450 μm, length 4.5 mm and exit aperture of 45 μm, which feeds a metal integrating cavity containing the detector. The radiation band is defined by a pair of lowpass and highpass mesh filters in front of the horn. Here we present measurements of optical noise equivalent power (NEP), optical efficiency, dynamic range and time constant. The results show that measured TES detectors are close to meeting the requirement of the "Band 3" of SAFARI FTS imaging instrument [1] on the SPICA mission [2].

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