166 citations · 650 across the 12 of their papers we have counts for
12 papers
Vibrational modes as the origin of dielectric loss at 0.27$\unicode{x2013}$100 THz in a-SiC:H
B. T. Buijtendorp, A. Endo, W. Jellema +9
Low-loss deposited dielectrics are beneficial for the advancement of superconducting integrated circuits for astronomy. In the microwave band (1$\unicode{x2013}$10 G…
Directional Filter Design and Simulation for Superconducting On-chip Filter-banks
Louis H. Marting, Kenichi Karatsu, Akira Endo +2
Many superconducting on-chip filter-banks suffer from poor coupling to the detectors behind each filter. This is a problem intrinsic to the commonly used half wavelength filter, wh…
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,…
Equivalence of Optical and Electrical Noise Equivalent Power of Hybrid NbTiN-Al Microwave Kinetic Inductance Detectors
R. M. J. Janssen, A. Endo, P. J. de Visser +2
We have measured and compared the response of hybrid NbTiN-Al Microwave Kinetic Inductance Detectors (MKIDs) to changes in bath temperature and illumination by sub-mm radiation. We…
High optical efficiency and photon noise limited sensitivity of microwave kinetic inductance detectors using phase readout
R. M. J. Janssen, J. J. A. Baselmans, A. Endo +4
We demonstrate photon noise limited performance in both phase and amplitude readout in microwave kinetic inductance detectors (MKIDs) consisting of NbTiN and Al, down to 100 fW of…
On-chip filter bank spectroscopy at 600-700 GHz using NbTiN superconducting resonators
A. Endo, C. Sfiligoj, S. J. C. Yates +6
We experimentally demonstrate the principle of an on-chip submillimeter wave filter bank spectrometer, using superconducting microresonators as narrow band-separation filters. The…
Microwave-induced excess quasiparticles in superconducting resonators measured through correlated conductivity fluctuations
P. J. de Visser, J. J. A. Baselmans, S. J. C. Yates +3
We have measured the number of quasiparticles and their lifetime in aluminium superconducting microwave resonators. The number of excess quasiparticles below 160 mK decreases from…
Photon noise limited radiation detection with lens-antenna coupled Microwave Kinetic Inductance Detectors
S. J. C. Yates, J. J. A. Baselmans, A. Endo +4
Microwave Kinetic Inductance Detectors (MKIDs) have shown great potential for sub-mm instrumentation because of the high scalability of the technology. Here we demonstrate for the…
Integrated Filterbank for DESHIMA: A Submillimeter Imaging Spectrograph Based on Superconducting Resonators
A. Endo, P. van der Werf, R. M. J. Janssen +6
An integrated filterbank (IFB) in combination with microwave kinetic inductance detectors (MKIDs), both based on superconducting resonators, could be used to make broadband submill…
A dual-band millimeter-wave kinetic inductance camera for the IRAM 30-meter telescope
A. Monfardini, A. Benoit, A. Bideaud +22
Context. The Neel IRAM KIDs Array (NIKA) is a fully-integrated measurement system based on kinetic inductance detectors (KIDs) currently being developed for millimeter wave astrono…
Reduced frequency noise in superconducting resonators
R. Barends, N. Vercruyssen, A. Endo +4
We report a reduction of the frequency noise in coplanar waveguide superconducting resonators. The reduction of 7 dB is achieved by removing the exposed dielectric substrate surfac…
Minimal resonator loss for circuit quantum electrodynamics
R. Barends, N. Vercruyssen, A. Endo +6
Single photon level quality factors of 500x10^3 are shown in NbTiN superconducting resonators at millikelvin temperatures. This result originates from the intrinsic low dielectric…