Superconducting On-chip Fourier Transform Spectrometer

R. Basu Thakur, N. Klimovich, P. K. Day, E. Shirokoff, P. D. Mauskopf, F. Faramarzi, P. S. Barry

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The kinetic inductance effect is strongly nonlinear with applied current in NbTiN, TiN and NbN thin films. This can be utilized to realize novel devices. We present results from transmission lines made with these materials, where DC (current) control is used to modulate the phase velocity thereby enabling on-chip spectrometers. Utility of such compact spectrometers is discussed, along with their natural connection with parametric amplifiers.

Original languageEnglish (US)
Pages (from-to)342-352
Number of pages11
JournalJournal of Low Temperature Physics
Issue number5-6
StatePublished - Sep 1 2020


  • CMB
  • Cosmology
  • FTS
  • Interferometer
  • Kinetic inductance
  • Parametric amplifier
  • Spectrometer

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • General Materials Science
  • Condensed Matter Physics


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