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Endo, A. (author), Sfiligoj, C. (author), Yates, S.J.C. (author), Baselmans, J.J.A. (author), Thoen, D.J. (author), Javadzadeh, S.M.H. (author), Van der Werf, P.P. (author), Baryshev, A.M. (author), Klapwijk, T.M. (author)We experimentally demonstrate the principle of an on-chip submillimeter wave filter bank spectrometer, using superconducting microresonators as narrow band-separation filters. The filters are made of NbTiN/SiNx/NbTiN microstrip line resonators, which have a resonance frequency in the range of 614-685?GHz, two orders of magnitude higher in...journal article 2013
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Diener, P. (author), Schellevis, H. (author), Baselmans, J.J.A. (author)The low frequency complex impedance of a high resistivity 92?????cm and 100?nm thick TiN superconducting film has been measured via the transmission of several high sensitivity GHz microresonators, down to TC/50. The temperature dependence of the kinetic inductance follows closely BCS local electrodynamics, with one well defined superconducting...journal article 2012
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Barends, R. (author), Vercruyssen, N. (author), Endo, A. (author), De Visser, P.J. (author), Zijlstra, T. (author), Klapwijk, T.M. (author), Baselmans, J.J.A. (author)We report a reduction in the frequency noise in coplanar waveguide superconducting resonators. The reduction of 7 dB is achieved by removing the exposed dielectric substrate surface from the region with high electric fields and by using NbTiN. In a model-analysis the surface of NbTiN is found to be a negligible source of noise, experimentally...journal article 2010