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

24 Jul 2019, 11:00
15m
Auditorium G. Testori (Milano)

Auditorium G. Testori

Milano

Piazza Città di Lombardia, 1, 20124 Milano MI
Oral Presentation Low Temperature Detector fabrication techniques and materials Orals LM 003

Speaker

Farzad Faramarzi (Arizona State University)

Description

An on-chip FTS consists of two waveguides coupled to long superconducting transmission lines (STLs) (∼ 520 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, $\mathcal{L}_k(I)$ of the STL material. Here we describe measurements of a superconducting on-chip FTS design coupled to a dual polarization W-band (90 GHz - 110 GHz) waveguide. We also describe the design, simulation, and fabrication of a new broadband planar antenna-coupled on-chip superconducting FTS. These devices have applications in ground-based and space-based millimeter-wave spectral surveys.

Student (Ph.D., M.Sc. or B.Sc.) Y
Less than 5 years of experience since completion of Ph.D Y

Primary author

Farzad Faramarzi (Arizona State University)

Co-authors

Erik Shirokoff (University of Chicago) Dr George Che (Georgia Institute of Technology) Mr Hamdi Mani (Arizona State University) Mr Harshad Surdi (Arizona State University) Pete Barry (Cardiff University) Dr Peter Day (Jet Propulsion Laboratory) Phillip Mauskopf (Arizona State University) Ritoban Basu Thakur (California Institute of Technology) Samuel Gordon (School of Earth and Space Exploration, Arizona State University) Ms Sasha Sypkens (Arizona State University)

Presentation Materials