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Baselmans, J.J.A. (author), Bueno, J. (author), Yates, S.J.C. (author), Yurduseven, O. (author), Llombart, Nuria (author), Karatsu, K. (author), Baryshev, A.M. (author), Ferrarini, L (author), Endo, A. (author), Thoen, David (author), de Visser, P.J. (author), Janssen, R.M.J. (author), Murugesan, V. (author), Driessen, E.F.C. (author), Coiffard, G. (author), Martin-Pintado, J. (author), Hargrave, P. (author), Griffin, M. (author)Aims. Future astrophysics and cosmic microwave background space missions operating in the far-infrared to millimetre part of the spectrum will require very large arrays of ultra-sensitive detectors in combination with high multiplexing factors and efficient low-noise and low-power readout systems. We have developed a demonstrator system suitable...journal article 2017
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Endo, A. (author), Yates, S.J.C. (author), Bueno, J. (author), Thoen, D.J. (author), Murugesan, V. (author), Baryshev, A.M. (author), Klapwijk, T.M. (author), Van der Werf, P.P. (author), Baselmans, J.J.A. (author)We show the first experimental results which prove that superconducting NbTiN coplanar–waveguide resonators can achieve a loaded Q factor in excess of 800 in the 350 GHz band. These resonators can be used as narrow band pass filters for on-chip filter bank spectrometers for astronomy. Moreover, the low-loss coplanar waveguide technology provides...journal article 2016
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Baryshev, A.M. (author), Hesper, R. (author), Mena, F.P. (author), Klapwijk, T.M. (author), Van Kempen, T.A. (author), Hogerheijde, M.R. (author), Jackson, B.D. (author), Adema, J. (author), Gerlofsma, G.J. (author), Bekema, M.E. (author), Barkhof, J. (author), De Haan-Stijkel, L.H.R. (author), Van den Bemt, M. (author), Koops, A. (author), Keizer, K. (author), Pieters, C. (author), Koops van het Jagt, J. (author), Schaeffer, H.H.A. (author), Zijlstra, T. (author), Kroug, M. (author), Lodewijk, C.F.J. (author), Wielinga, K. (author), Boland, W. (author), Van Dishoeck, E.F. (author), Jager, H. (author), Wild, W. (author)Aims. We describe the design, construction, and characterization of the Band 9 heterodyne receivers (600–720 GHz) for the Atacama Large Millimeter/submillimeter Array (ALMA). First-light Band 9 data, obtained during ALMA commissioning and science verification phases, are presented as well. Methods. The ALMA Band 9 receiver units (so-called ...journal article 2015