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Z-Spec: A MM-Wave Spectrometer For Measuring Redshifts Of Submillimeter Galaxies

Gromke, J. J. and Bradford, C. M. and Bock, J. J. and Dragovan, M. and Duband, L. and Earle, L. and Glenn, J. and Matsuhara, H. and Naylor, B. J. and Nguyen, H. and Zmuidzinas, J. (2002) Z-Spec: A MM-Wave Spectrometer For Measuring Redshifts Of Submillimeter Galaxies. In: Low Temperature Detectors: Ninth International Workshop on Low Temperature Detectors. AIP Conference Proceedings. No.605. American Institute of Physics , pp. 543-546. ISBN 0-7354-0049-0.

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We are building a background-limited, broadband millimeter-wave spectrometer (Z-Spec) for observations of CO rotational transitions from high-redshift dusty galaxies. The large instantaneous bandwidth (195 to 310 GHz) will enable redshifts of dust obscured galaxies to be unambiguously measured. Z-Spec uses a waveguide-coupled grating architecture in which the light propagation is confined within a parallel-plate waveguide. The grating is extremely compact compared to a classical free-space system. An array of silicon nitride bolometers cooled to 100 mK will provide background-limited performance. Z-Spec serves as a technology demonstration for a future space-borne far-infrared grating spectrometer.

Item Type:Book Section
Related URLs:
Bradford, C. M.0000-0001-5261-7094
Bock, J. J.0000-0002-5710-5212
Glenn, J.0000-0001-7527-2017
Additional Information:© 2002 American Institute of Physics. Issue Date: 5 February 2002. We greatly appreciate the support of Peter Siegel of the Submillimeter Advanced Technology Group of JPL for help testing the prototype grating.
Subject Keywords:millimetre wave spectroscopy; microwave spectrometers; diffraction gratings; bolometers; radioastronomy; submillimetre astronomy; astronomical instruments; red shift; galaxies; low-temperature techniques
Series Name:AIP Conference Proceedings
Issue or Number:605
Classification Code:PACS: 95.55.Qf; 07.57.Pt
Record Number:CaltechAUTHORS:20111101-110531934
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:27555
Deposited By: Jason Perez
Deposited On:01 Nov 2011 21:29
Last Modified:09 Mar 2020 13:18

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