SuperSpec, The On-Chip Spectrometer: Improved NEP and Antenna Performance

Jordan Wheeler, S. Hailey-Dunsheath, E. Shirokoff, P. S. Barry, C. M. Bradford, S. Chapman, G. Che, S. Doyle, J. Glenn, S. Gordon, M. Hollister, A. Kovács, H. G. LeDuc, Philip Mauskopf, R. McGeehan, C. McKenney, T. Reck, J. Redford, C. Ross, C. ShiuC. Tucker, J. Turner, S. Walker, J. Zmuidzinas

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

SuperSpec is a new technology for mm and sub-mm spectroscopy. It is an on-chip spectrometer being developed for multi-object, moderate-resolution ((Formula presented.)), large bandwidth survey spectroscopy of high-redshift galaxies for the 1 mm atmospheric window. This band accesses the CO ladder in the redshift range of (Formula presented.) 0–4 and the [CII] 158 (Formula presented.)m line from redshift (Formula presented.) 5–9. SuperSpec employs a novel architecture in which detectors are coupled to a series of resonant filters along a single microwave feedline instead of using dispersive optics. This construction allows for the creation of a full spectrometer occupying only (Formula presented.) of silicon, a reduction in size of several orders of magnitude when compared to standard grating spectrometers. This small profile enables the production of future multi-beam spectroscopic instruments envisioned for the millimeter band to measure the redshifts of dusty galaxies efficiently. The SuperSpec collaboration is currently pushing toward the deployment of a SuperSpec demonstration instrument in fall of 2018. The progress with the latest SuperSpec prototype devices is presented; reporting increased responsivity via a reduced inductor volume (2.6 (Formula presented.)) and the incorporation of a new broadband antenna. A detector NEP of 3–4 (Formula presented.) W/Hz(Formula presented.) is obtained, sufficient for background-limited observation on mountaintop sites. In addition, beam maps and efficiency measurements of a new wide-band dual bow-tie slot antenna are shown.

Original languageEnglish (US)
Pages (from-to)1-7
Number of pages7
JournalJournal of Low Temperature Physics
DOIs
StateAccepted/In press - May 4 2018

Fingerprint

Spectrometers
Galaxies
antennas
chips
spectrometers
Antennas
Spectroscopy
Detectors
Slot antennas
Diffraction gratings
Ladders
Silicon
Carbon Monoxide
Optics
Demonstrations
Microwaves
Bandwidth
galaxies
broadband
atmospheric windows

Keywords

  • Antenna
  • Bow tie
  • Kinetic inductance detectors
  • mm-wave
  • NEP
  • Spectrometer

ASJC Scopus subject areas

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

Cite this

Wheeler, J., Hailey-Dunsheath, S., Shirokoff, E., Barry, P. S., Bradford, C. M., Chapman, S., ... Zmuidzinas, J. (Accepted/In press). SuperSpec, The On-Chip Spectrometer: Improved NEP and Antenna Performance. Journal of Low Temperature Physics, 1-7. https://doi.org/10.1007/s10909-018-1926-z

SuperSpec, The On-Chip Spectrometer : Improved NEP and Antenna Performance. / Wheeler, Jordan; Hailey-Dunsheath, S.; Shirokoff, E.; Barry, P. S.; Bradford, C. M.; Chapman, S.; Che, G.; Doyle, S.; Glenn, J.; Gordon, S.; Hollister, M.; Kovács, A.; LeDuc, H. G.; Mauskopf, Philip; McGeehan, R.; McKenney, C.; Reck, T.; Redford, J.; Ross, C.; Shiu, C.; Tucker, C.; Turner, J.; Walker, S.; Zmuidzinas, J.

In: Journal of Low Temperature Physics, 04.05.2018, p. 1-7.

Research output: Contribution to journalArticle

Wheeler, J, Hailey-Dunsheath, S, Shirokoff, E, Barry, PS, Bradford, CM, Chapman, S, Che, G, Doyle, S, Glenn, J, Gordon, S, Hollister, M, Kovács, A, LeDuc, HG, Mauskopf, P, McGeehan, R, McKenney, C, Reck, T, Redford, J, Ross, C, Shiu, C, Tucker, C, Turner, J, Walker, S & Zmuidzinas, J 2018, 'SuperSpec, The On-Chip Spectrometer: Improved NEP and Antenna Performance', Journal of Low Temperature Physics, pp. 1-7. https://doi.org/10.1007/s10909-018-1926-z
Wheeler J, Hailey-Dunsheath S, Shirokoff E, Barry PS, Bradford CM, Chapman S et al. SuperSpec, The On-Chip Spectrometer: Improved NEP and Antenna Performance. Journal of Low Temperature Physics. 2018 May 4;1-7. https://doi.org/10.1007/s10909-018-1926-z
Wheeler, Jordan ; Hailey-Dunsheath, S. ; Shirokoff, E. ; Barry, P. S. ; Bradford, C. M. ; Chapman, S. ; Che, G. ; Doyle, S. ; Glenn, J. ; Gordon, S. ; Hollister, M. ; Kovács, A. ; LeDuc, H. G. ; Mauskopf, Philip ; McGeehan, R. ; McKenney, C. ; Reck, T. ; Redford, J. ; Ross, C. ; Shiu, C. ; Tucker, C. ; Turner, J. ; Walker, S. ; Zmuidzinas, J. / SuperSpec, The On-Chip Spectrometer : Improved NEP and Antenna Performance. In: Journal of Low Temperature Physics. 2018 ; pp. 1-7.
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AU - Bradford, C. M.

AU - Chapman, S.

AU - Che, G.

AU - Doyle, S.

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AU - Redford, J.

AU - Ross, C.

AU - Shiu, C.

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