The design and characterization of a 300 channel, optimized full-band millimeter filterbank for science with SuperSpec

J. Redford, J. Wheeler, K. Karkare, S. Hailey-Dunsheath, C. M. Bradford, E. Shirokoff, P. S. Barry, G. Che, J. Glenn, H. G. Leduc, P. Mauskopf, R. McGeehan, T. Reck, J. Zmuidzinas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

SuperSpec is an integrated, on-chip spectrometer for millimeter and sub-millimeter astronomy. We report the approach, design optimization, and partial characterization of a 300 channel filterbank covering the 185 to 315 GHz frequency band that targets a resolving power R ∼ 310, and fits on a 3.5×5.5 cm chip. SuperSpec uses a lens and broadband antenna to couple radiation into a niobium microstrip that feeds a bank of niobium microstrip half-wave resonators for frequency selectivity. Each half-wave resonator is coupled to the inductor of a titanium nitride lumped-element kinetic inductance detector (LEKID) that detects the incident radiation. The device was designed for use in a demonstration instrument at the Large Millimeter Telescope (LMT).

Original languageEnglish (US)
Title of host publicationMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
EditorsJonas Zmuidzinas, Jian-Rong Gao
PublisherSPIE
ISBN (Print)9781510619692
DOIs
StatePublished - Jan 1 2018
EventMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States
Duration: Jun 12 2018Jun 15 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10708
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherMillimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
CountryUnited States
CityAustin
Period6/12/186/15/18

Keywords

  • Kinetic Inductance Detectors
  • Millimeter-Wave
  • Spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Redford, J., Wheeler, J., Karkare, K., Hailey-Dunsheath, S., Bradford, C. M., Shirokoff, E., Barry, P. S., Che, G., Glenn, J., Leduc, H. G., Mauskopf, P., McGeehan, R., Reck, T., & Zmuidzinas, J. (2018). The design and characterization of a 300 channel, optimized full-band millimeter filterbank for science with SuperSpec. In J. Zmuidzinas, & J-R. Gao (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX [107081O] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10708). SPIE. https://doi.org/10.1117/12.2313666