Published February 5, 2002
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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
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Additional details
- Eprint ID
- 27555
- Resolver ID
- CaltechAUTHORS:20111101-110531934
- Created
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2011-11-01Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Series Name
- AIP Conference Proceedings
- Series Volume or Issue Number
- 605