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Low Noise Titanium Nitride KIDs for SuperSpec: A Millimeter-Wave On-Chip Spectrometer

Hailey-Dunsheath, S. and Shirokoff, E. and Barry, P. S. and Bradford, C. M. and Chapman, S. and Che, G. and Glenn, J. and Hollister, M. and Kovács, A. and LeDuc, H. G. and Mauskopf, P. and McKenney, C. and O’Brient, R. and Padin, S. and Reck, T. and Shiu, C. and Tucker, C. E. and Wheeler, J. and Williamson, R. and Zmuidzinas, J. (2016) Low Noise Titanium Nitride KIDs for SuperSpec: A Millimeter-Wave On-Chip Spectrometer. Journal of Low Temperature Physics, 184 (1). pp. 180-187. ISSN 0022-2291. doi:10.1007/s10909-015-1375-x.

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SuperSpec is a novel on-chip spectrometer we are developing for multi-object, moderate resolution (R= 100–500), large bandwidth (∼1.65:1), submillimeter and millimeter survey spectroscopy of high-redshift galaxies. The spectrometer employs a filter bank architecture, and consists of a series of half-wave resonators formed by lithographically-patterned superconducting transmission lines. The signal power admitted by each resonator is detected by a lumped element titanium nitride (TiN) kinetic inductance detector operating at 100–200 MHz. We have tested a new prototype device that achieves the targeted R=100R=100 resolving power, and has better detector sensitivity and optical efficiency than previous devices. We employ a new method for measuring photon noise using both coherent and thermal sources of radiation to cleanly separate the contributions of shot and wave noise. We report an upper limit to the detector NEP of 1.4×10^(−17) W Hz^(−1/2), within 10 % of the photon noise-limited NEP for a ground-based R=100R=100 spectrometer.

Item Type:Article
Related URLs:
URLURL TypeDescription ReadCube access Paper
Hailey-Dunsheath, S.0000-0002-8504-7988
Bradford, C. M.0000-0001-5261-7094
Glenn, J.0000-0001-7527-2017
Mauskopf, P.0000-0001-6397-5516
Additional Information:© 2015 Springer Science+Business Media New York. Received: 30 September 2015; Accepted: 14 November 2015. First online: 14 December 2015. This project is supported by NASA Astrophysics Research and Analysis (APRA) Grant No. 399131. and by the NSF Advanced Technology and Instrumentation program award #1407287.
Group:Keck Institute for Space Studies
Funding AgencyGrant Number
NASAAPRA 399131.
Subject Keywords:Kinetic inductance detector; Millimeter-wave; Spectroscopy
Issue or Number:1
Record Number:CaltechAUTHORS:20151222-084916037
Persistent URL:
Official Citation:Hailey-Dunsheath, S., Shirokoff, E., Barry, P.S. et al. J Low Temp Phys (2016) 184: 180. doi:10.1007/s10909-015-1375-x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:63125
Deposited By: Tony Diaz
Deposited On:22 Dec 2015 17:02
Last Modified:10 Nov 2021 23:12

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