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Astronomical demonstration of superconducting bolometer arrays

Staguhn, Johannes and Benford, Dominic and Pajot, François and Ames, Troy and Chervenak, Jay and Grossman, Erich and Irwin, Kent and Maffei, Bruno and Moseley, Harvey and Phillips, Thomas and Reintsema, Carl and Rioux, Cyrille and Shafer, Rick and Voellmer, George (2003) Astronomical demonstration of superconducting bolometer arrays. In: Millimeter and Submillimeter Detectors for Astronomy. Proceedings of SPIE. No.4855. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 100-107. ISBN 9780819446343.

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We have built a prototype submillimeter spectrometer, FIBRE, which is based on a helium-cooled scanning Fabry-Perot and superconducting transition edge sensor bolometers (TES). SQUID multiplexers are used to read out the individual detector pixels. The spectral resolving power of the instrument is provided by the Fabry-Perot spectrometer. The outgoing light from the Fabry-Perot passes onto a low resolution grating for order sorting. A linear bolometer array consisting of 16 elements detects this dispersed light, capturing 5 orders simultaneously from one position on the sky. With tuning of the Fabry-Perot over one free spectral range, a spectrum covering Δλ/λ=1/7 at a resolution of ~1/1200 can be achieved. The spectral resolution is sufficient to resolve doppler broadened line emission from external galaxies. FIBRE operates in the 350 μm and 450 μm bands. These bands cover line emission from the important PDR tracers neutral carbon [CI] and carbon monoxide CO. The spectrometer was used at the Caltech Submillimeter Observatory to obtain the first ever astronomical observations using multiplexed arrays of superconducting transition edge bolometers.

Item Type:Book Section
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URLURL TypeDescription
Staguhn, Johannes0000-0002-8437-0433
Benford, Dominic0000-0002-9884-4206
Additional Information:© 2003 Society of Photo-optical Instrumentation Engineers (SPIE). We thank the staff of the Caltech Submillimeter Observatory for making the observations described here possible. Their support was crucial in the commissioning of FIBRE. We owe a debt of gratitude to many –too many to be named hereat NASA ’s Goddard Space Flight Center for their contributions to the hardware and software that FIBRE uses.
Subject Keywords:detectors, bolometers, multiplexers, sub-mm instruments, spectrometers
Series Name:Proceedings of SPIE
Issue or Number:4855
Record Number:CaltechAUTHORS:20190114-155517879
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Official Citation:Johannes G. Staguhn, Dominic J. Benford, Francois Pajot, Troy J. Ames, James A. Chervenak, Erich N. Grossman, Kent D. Irwin, Bruno Maffei, S. Harvey Moseley, Thomas G. Phillips, Carl D. Reintsema, Cyrille Rioux, Richard A. Shafer, George M. Voellmer, "Astronomical demonstration of superconducting bolometer arrays," Proc. SPIE 4855, Millimeter and Submillimeter Detectors for Astronomy, (17 February 2003); doi: 10.1117/12.459377
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92266
Deposited By: Tony Diaz
Deposited On:15 Jan 2019 23:57
Last Modified:16 Nov 2021 03:48

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