An On-Chip Superconducting Kinetic Inductance Fourier Transform Spectrometer for Millimeter-Wave Astronomy

An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) ( ∼  620 mm) using two coupling probes. The signal propagating on one of the STLs is phase-shifted with respect to the other line with a bias current that affects the nonlinear dependence of kinetic i...

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Veröffentlicht in:Journal of low temperature physics 2020-05, Vol.199 (3-4), p.867-874
Hauptverfasser: Faramarzi, F. B., Mauskopf, P., Gordon, S., Che, G., Day, P., Mani, H., Surdi, H., Sypkens, S., Barry, P., Shirokoff, E., Thakur, R. B.
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Sprache:eng
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Zusammenfassung:An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) ( ∼  620 mm) using two coupling probes. The signal propagating on one of the STLs is phase-shifted with respect to the other line with a bias current that affects the nonlinear dependence of kinetic inductance, L k ( I ) of the STL material. Here we describe the design and simulation of a superconducting on-chip FTS coupled to a dual polarization W-band (90–110 GHz) waveguide. These devices have applications in ground-based and space-based millimeter-wave spectral surveys.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-019-02295-3