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

Karkare, K. S. and Barry, P. S. and Bradford, C. M. and Chapman, S. and Doyle, S. and Glenn, J. and Gordon, S. and Hailey-Dunsheath, S. and Janssen, R. M. J. and Kovács, A. and LeDuc, H. G. and Mauskopf, P. and McGeehan, R. and Redford, J. and Shirokoff, E. and Tucker, C. and Wheeler, J. C. and Zmuidzinas, J. (2020) Full-Array Noise Performance of Deployment-Grade SuperSpec mm-Wave On-Chip Spectrometers. Journal of Low Temperature Physics, 199 (3-4). pp. 849-857. ISSN 0022-2291. doi:10.1007/s10909-020-02407-4. https://resolver.caltech.edu/CaltechAUTHORS:20200225-095251518

PDF - Accepted Version
See Usage Policy.
1MB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20200225-095251518

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. In these proceedings, we present the noise performance of a full R∼275 spectrometer measured using deployment-ready RF hardware and software. We report typical noise equivalent powers through the full device of ∼3×10⁻¹⁶ 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.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1007/s10909-020-02407-4	DOI	Article
https://rdcu.be/cejJA	Publisher	Free ReadCube access
https://arxiv.org/abs/2002.04542	arXiv	Discussion Paper

ORCID:

Author	ORCID
Karkare, K. S.	0000-0002-5215-6993
Bradford, C. M.	0000-0001-5261-7094
Glenn, J.	0000-0001-7527-2017
Hailey-Dunsheath, S.	0000-0002-8504-7988
Kovács, A.	0000-0001-8991-9088
Mauskopf, P.	0000-0001-6397-5516
McGeehan, R.	0000-0001-5306-8285
Shirokoff, E.	0000-0002-2757-1423
Tucker, C.	0000-0002-1851-3918
Wheeler, J. C.	0000-0003-1349-6538

Additional Information:

© 2020 Springer Nature Switzerland AG. Received 30 August 2019; Accepted 08 February 2020; Published 24 February 2020. This work is supported by the National Science Foundation under Grant No. AST-1407457. K. S. Karkare is supported by the Grainger Foundation and the Kavli Institute for Cosmological Physics at the University of Chicago through an endowment from the Kavli Foundation and its founder Fred Kavli. R. M. J. Janssen’s research was supported by an appointment to the NASA Postdoctoral Program at the NASA Jet Propulsion Laboratory, administered by Universities Space Research Association under contract with NASA.

Group:

Astronomy Department

Funders:

Funding Agency	Grant Number
NSF	AST-1407457
Grainger Foundation	UNSPECIFIED
Kavli Foundation	UNSPECIFIED
NASA Postdoctoral Program	UNSPECIFIED

Subject Keywords:

Kinetic inductance detectors; Spectrometer; NEP; SuperSpec; Large Millimeter Telescope; ROACH2

Issue or Number:

3-4

DOI:

10.1007/s10909-020-02407-4

Record Number:

CaltechAUTHORS:20200225-095251518

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20200225-095251518

Official Citation:

Karkare, K.S., Barry, P.S., Bradford, C.M. et al. Full-Array Noise Performance of Deployment-Grade SuperSpec mm-Wave On-Chip Spectrometers. J Low Temp Phys 199, 849–857 (2020). https://doi.org/10.1007/s10909-020-02407-4

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

101527

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

25 Feb 2020 18:07

Last Modified:

16 Nov 2021 18:03

Repository Staff Only: item control page