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Design and performance of SuperSpec: an on-chip, KID-based, mm-wavelength spectrometer

Shirokoff, E., Barry, P. S., Bradford, C. M., Chattopadhyay, G., Day, P., Doyle, S. ORCID:, Hailey-Dunsheath, S., Hollister, M. I., Kovács, A., Leduc, H. G., McKenney, C. M., Mauskopf, P., Nguyen, H. T., O'Brient, R., Padin, S., Reck, T. J., Swenson, L. J., Tucker, C. E. ORCID: and Zmuidzinas, J. 2014. Design and performance of SuperSpec: an on-chip, KID-based, mm-wavelength spectrometer. Journal of Low Temperature Physics 176 (5-6) , pp. 657-662. 10.1007/s10909-014-1122-8

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SuperSpec is an ultra-compact spectrometer-on-a-chip for mm and submm wavelength astronomy. Its very small size, wide spectral bandwidth, and highly multiplexed detector readout will enable construction of powerful multi-object spectrometers for observations of galaxies at high redshift. SuperSpec is a filter bank with planar, lithographed, superconducting transmission line resonator filters and lumped-element kinetic inductance detectors made from Titanium Nitride. We have built an 81 detector prototype that operates in the 195–310 GHz band. The prototype has a wide-band metal feed horn with a transition to microstrip that feeds the filter bank. The prototype has demonstrated optical filter bank channels with a range of resolving powers from 300 to 700, measured fractional frequency noise of 10−17Hz−1 at 1Hz.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Springer
ISSN: 0022-2291
Date of Acceptance: 28 January 2014
Last Modified: 16 May 2023 11:21

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