Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published February 5, 2002 | Published
Book Section - Chapter Open

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

Abstract

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.

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.

Attached Files

Published - GROaipcp02.pdf

Files

GROaipcp02.pdf
Files (588.1 kB)
Name Size Download all
md5:a3e8f67d56ca3607489706eac4fe20ff
588.1 kB Preview Download

Additional details

Created:
August 21, 2023
Modified:
January 13, 2024