The design and characterization of a 300 channel, optimized full-band millimeter filterbank for science with SuperSpec
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).
Additional Information
© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).Attached Files
Published - 107081O.pdf
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Additional details
- Eprint ID
- 91931
- Resolver ID
- CaltechAUTHORS:20181220-092841111
- Created
-
2018-12-21Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Astronomy Department
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 10708