Development of Superconducting On-chip Fourier Transform Spectrometers

Ritoban Basu Thakur, A. Steiger, S. Shu, F. Faramarzi, N. Klimovich, P. K. Day, E. Shirokoff, P. D. Mauskopf, P. S. Barry

Research output: Contribution to journalArticlepeer-review


Superconducting On-chip Fourier Transform Spectrometers (SOFTS) are broadband, ultra-compact and electronic interferometers. SOFTS will enable kilo-pixel spectro-imaging focal planes, enhancing sub-millimeter astrophysics and cosmology. Particular applications include cluster astrophysics, cosmic microwave background (CMB) science, and line intensity mapping. This article details the development, design and bench-marking of radio frequency (RF) on-chip architecture of SOFTS for Ka and W-bands.

Original languageEnglish (US)
JournalJournal of Low Temperature Physics
StateAccepted/In press - 2022


  • CMB
  • Line Intensity Mapping
  • Nonlinear Kinetic Inductance
  • Spectrometer

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics


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