Optical measurements of SuperSpec: A millimeter-wave on-chip spectrometer

S. Hailey-Dunsheath, P. S. Barry, C. M. Bradford, G. Chattopadhyay, P. Day, S. Doyle, M. Hollister, A. Kovacs, H. G. Leduc, N. Llombart, Philip Mauskopf, C. McKenney, R. Monroe, H. T. Nguyen, R. O'Brient, S. Padin, T. Reck, E. Shirokoff, L. Swenson, C. E. TuckerJ. Zmuidzinas

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

SuperSpec is a novel on-chip spectrometer we are developing for (sub)millimeter wavelength astronomy. Our approach utilizes a filterbank of moderate resolution (R∼500) channels, coupled to lumped element kinetic inductance detectors (KIDs), all integrated onto a single silicon chip. The channels are half-wave resonators formed by lithographically depositing segments of superconducting transmission line, and the KIDs are titanium nitride resonators. Here we present optical measurements of a first generation prototype, operating in the 180-280 GHz frequency range. We have used a coherent source to measure the spectral profiles of 17 channels, which achieve linewidths corresponding to quality factors as high as Qfilt = 700, consistent with the designed values plus additional dissipation characterized by Qi ≈ 1440. We have also used a Fourier Transform Spectrometer to characterize the spectral purity of all 72 channels on the chip, and measure typical out of band responses ∼30 dB below the peak response.

Original languageEnglish (US)
Pages (from-to)841-847
Number of pages7
JournalJournal of Low Temperature Physics
Volume176
Issue number5-6
DOIs
StatePublished - 2014

Fingerprint

optical measurement
Millimeter waves
Inductance
millimeter waves
Spectrometers
Resonators
chips
spectrometers
Detectors
Kinetics
Titanium nitride
Astronomy
Silicon
inductance
Linewidth
Electric lines
Fourier transforms
resonators
coherent sources
Wavelength

Keywords

  • Kinetic inductance detector
  • Millimeter-wave
  • Spectroscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)

Cite this

Hailey-Dunsheath, S., Barry, P. S., Bradford, C. M., Chattopadhyay, G., Day, P., Doyle, S., ... Zmuidzinas, J. (2014). Optical measurements of SuperSpec: A millimeter-wave on-chip spectrometer. Journal of Low Temperature Physics, 176(5-6), 841-847. https://doi.org/10.1007/s10909-013-1068-2

Optical measurements of SuperSpec : A millimeter-wave on-chip spectrometer. / Hailey-Dunsheath, S.; Barry, P. S.; Bradford, C. M.; Chattopadhyay, G.; Day, P.; Doyle, S.; Hollister, M.; Kovacs, A.; Leduc, H. G.; Llombart, N.; Mauskopf, Philip; McKenney, C.; Monroe, R.; Nguyen, H. T.; O'Brient, R.; Padin, S.; Reck, T.; Shirokoff, E.; Swenson, L.; Tucker, C. E.; Zmuidzinas, J.

In: Journal of Low Temperature Physics, Vol. 176, No. 5-6, 2014, p. 841-847.

Research output: Contribution to journalArticle

Hailey-Dunsheath, S, Barry, PS, Bradford, CM, Chattopadhyay, G, Day, P, Doyle, S, Hollister, M, Kovacs, A, Leduc, HG, Llombart, N, Mauskopf, P, McKenney, C, Monroe, R, Nguyen, HT, O'Brient, R, Padin, S, Reck, T, Shirokoff, E, Swenson, L, Tucker, CE & Zmuidzinas, J 2014, 'Optical measurements of SuperSpec: A millimeter-wave on-chip spectrometer', Journal of Low Temperature Physics, vol. 176, no. 5-6, pp. 841-847. https://doi.org/10.1007/s10909-013-1068-2
Hailey-Dunsheath S, Barry PS, Bradford CM, Chattopadhyay G, Day P, Doyle S et al. Optical measurements of SuperSpec: A millimeter-wave on-chip spectrometer. Journal of Low Temperature Physics. 2014;176(5-6):841-847. https://doi.org/10.1007/s10909-013-1068-2
Hailey-Dunsheath, S. ; Barry, P. S. ; Bradford, C. M. ; Chattopadhyay, G. ; Day, P. ; Doyle, S. ; Hollister, M. ; Kovacs, A. ; Leduc, H. G. ; Llombart, N. ; Mauskopf, Philip ; McKenney, C. ; Monroe, R. ; Nguyen, H. T. ; O'Brient, R. ; Padin, S. ; Reck, T. ; Shirokoff, E. ; Swenson, L. ; Tucker, C. E. ; Zmuidzinas, J. / Optical measurements of SuperSpec : A millimeter-wave on-chip spectrometer. In: Journal of Low Temperature Physics. 2014 ; Vol. 176, No. 5-6. pp. 841-847.
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