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Proceedings Paper

The design and characterization of a 300 channel, optimized full-band millimeter filterbank for science with SuperSpec
Author(s): 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
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Paper 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).

Paper Details

Date Published: 9 July 2018
PDF: 8 pages
Proc. SPIE 10708, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX, 107081O (9 July 2018); doi: 10.1117/12.2313666
Show Author Affiliations
J. Redford, Caltech (United States)
J. Wheeler, Univ. of Colorado Boulder (United States)
K. Karkare, The Univ. of Chicago (United States)
S. Hailey-Dunsheath, Caltech (United States)
C. M. Bradford, Caltech (United States)
Jet Propulsion Lab. (United States)
E. Shirokoff, The Univ. of Chicago (United States)
P. S. Barry, The Univ. of Chicago (United States)
G. Che, Arizona State Univ. (United States)
J. Glenn, Univ. of Colorado Boulder (United States)
H. G. Leduc, Jet Propulsion Lab. (United States)
P. Mauskopf, Arizona State Univ. (United States)
R. McGeehan, The Univ. of Chicago (United States)
T. Reck, Jet Propulsion Lab. (United States)
J. Zmuidzinas, Caltech (United States)
Jet Propulsion Lab. (United States)


Published in SPIE Proceedings Vol. 10708:
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Jonas Zmuidzinas; Jian-Rong Gao, Editor(s)

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