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Hydrogenated Amorphous Silicon Carbide: A Low-loss Deposited Dielectric for Microwave to Submillimeter Wave Superconducting Circuits
B. T. Buijtendorp, S. Vollebregt, K. Karatsu +6
Low-loss deposited dielectrics will benefit superconducting devices such as integrated superconducting spectrometers, superconducting qubits and kinetic inductance parametric ampli…
DESHIMA 2.0: development of an integrated superconducting spectrometer for science-grade astronomical observations
Akio Taniguchi, Tom J. L. C. Bakx, Jochem J. A. Baselmans +32
Integrated superconducting spectrometer (ISS) technology will enable ultra-wideband, integral-field spectroscopy for (sub)millimeter-wave astronomy, in particular, for uncovering t…
Model and Measurements of an Optical Stack for Broadband Visible to Near-IR Absorption in TiN KIDs
K. Kouwenhoven, I. Elwakil, J. van Wingerden +4
Typical materials for optical Kinetic Inductance Detetectors (KIDs) are metals with a natural absorption of 30-50% in the visible and near-infrared. To reach high absorption effici…
Terahertz Band-Pass Filters for Wideband Superconducting On-chip Filter-bank Spectrometers
Alejandro Pascual Laguna, Kenichi Karatsu, David J. Thoen +4
A superconducting microstrip half-wavelength resonator is proposed as a suitable band-pass filter for broadband moderate spectral resolution spectroscopy for terahertz (THz) astron…
Superconducting Microstrip Losses at Microwave and Sub-millimeter wavelengths
S. Hähnle, K. Kouwenhoven, B. Buijtendorp +5
We present a lab-on-chip experiment to accurately measure losses of superconducting microstrip lines at microwave and sub-mm wavelengths. The microstrips are fabricated from NbTiN,…
Phonon-trapping enhanced energy resolution in superconducting single photon detectors
Pieter J. de Visser, Steven A. H. de Rooij, Vignesh Murugesan +2
A noiseless, photon counting detector, which resolves the energy of each photon, could radically change astronomy, biophysics and quantum optics. Superconducting detectors promise…