Development of Superconducting On-chip Fourier Transform Spectrometers.

Ritoban Basu ThakurA SteigerS ShuF FaramarziN KlimovichP K DayE ShirokoffP D MauskopfP S Barry

Published in: Journal of low temperature physics (2022)

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.

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