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FIBRE: a broadband submillimeter spectrometer using superconducting bolometer arrays

Staguhn, Johannes and Benford, Dominic and Pajot, François and Ames, Troy and Allen, Christine and Chervenak, Jay and Lefranc, Sebastien and Maher, Steven and Moseley, Harvey and Phillips, Thomas and Rioux, C. and Shafer, Rick and Voellmer, George (2004) FIBRE: a broadband submillimeter spectrometer using superconducting bolometer arrays. In: Millimeter and Submillimeter Detectors for Astronomy II. Proceedings of SPIE. No.5498. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 438-445. ISBN 9780819454300.

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The Fabry-Perot Interferometer Bolometer Research Experiment FIBRE, a protoype submillimeter spectrometer for astronomical observations, is based on a helium-cooled scanning Fabry-Perot and superconducting transition edge sensor bolometers (TES). The TES design takes advantage of a recently discovered method of excess noise reduction by depositing lateral normal metal bars on these devices. A SQUID multiplexer is used to read out the individual detector pixels. The spectral resolving power of the instrument is provided by a 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. This 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 is used at the Caltech Submillimeter Observatory for astronomical observations.

Item Type:Book Section
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URLURL TypeDescription
Staguhn, Johannes0000-0002-8437-0433
Benford, Dominic0000-0002-9884-4206
Maher, Steven0000-0002-1987-6104
Additional Information:© 2004 Society of Photo-Optical Instrumentation Engineers (SPIE). We thank the staff of the Caltech Submillimeter Observatory for their support during observations.
Subject Keywords:detectors, bolometers, multiplexers, sub-mm instruments, spectrometers
Series Name:Proceedings of SPIE
Issue or Number:5498
Record Number:CaltechAUTHORS:20180809-133557379
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Official Citation:Johannes G. Staguhn, Dominic J. Benford, Francois Pajot, Troy Ames, Christine A. Allen, James A. Chervenak, Sebastien Lefranc, Steven Maher, S. Harvey Moseley, Thomas Phillips, Cyrille G. Rioux, Richard A. Shafer, George M. Voellmer, "FIBRE: a broadband submillimeter spectrometer using superconducting bolometer arrays", Proc. SPIE 5498, Millimeter and Submillimeter Detectors for Astronomy II, (8 October 2004); doi: 10.1117/12.552128;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:88702
Deposited By: George Porter
Deposited On:09 Aug 2018 21:41
Last Modified:16 Nov 2021 00:29

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