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DOE OSTI · 1767044

Full-Array Noise Performance of Deployment-Grade SuperSpec mm-Wave On-Chip Spectrometers

Karkare, K. S.·Barry, P. S.·Bradford, C. M.·Chapman, S.·Doyle, S.·Glenn, J.·Gordon, S.·Hailey-Dunsheath, S.·Janssen, R. M. J.·Kovács, A.·LeDuc, H. G.·Mauskopf, P.·McGeehan, R.·Redford, J.·Shirokoff, E.·Tucker, C.·Wheeler, J.·Zmuidzinas, J.
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Abstract

SuperSpec is an on-chip filter bank spectrometer designed for wideband moderate-resolution spectroscopy at millimeter wavelengths, employing TiN kinetic inductance detectors. SuperSpec technology will enable large-format spectroscopic integral field units suitable for high-redshift line intensity mapping and multi-object spectrographs. In previous results, we have demonstrated noise performance in individual detectors suitable for photon noise-limited ground-based observations at excellent mm-wave sites. Here, we present the noise performance of a full R similar to 275 spectrometer measured using deployment-ready RF hardware and software. We report typical noise equivalent powers through the full device of similar to 3x10 -16 W Hz -1/2 at expected sky loadings, which are photon noise dominated. Based on these results, we plan to deploy a six-spectrometer demonstration instrument to the Large Millimeter Telescope in early 2020.

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47 OTHER INSTRUMENTATIONLarge Millimeter TelescopeNEPROACH2SuperSpeckinetic inductance detectorsspectrometer

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Karkare, K. S., Barry, P. S., Bradford, C. M., Chapman, S., Doyle, S., Glenn, J., Gordon, S., Hailey-Dunsheath, S., Janssen, R. M. J., Kovács, A., LeDuc, H. G., Mauskopf, P., McGeehan, R., Redford, J., Shirokoff, E., Tucker, C., Wheeler, J., Zmuidzinas, J.. 2020-02-24. Full-Array Noise Performance of Deployment-Grade SuperSpec mm-Wave On-Chip Spectrometers. https://doi.org/10.1007/s10909-020-02407-4

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