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Kroll, J.G. (author), Borsoi, F. (author), van der Enden, K.L. (author), Uilhoorn, W. (author), de Jong, D. (author), Quintero-Perez, M. (author), van Woerkom, D.J. (author), Bruno, A. (author), Plissard, S.R. (author), Car, D. (author), Bakkers, E.P.A.M. (author), Cassidy, M.C. (author), Kouwenhoven, L.P. (author)Superconducting coplanar-waveguide resonators that can operate in strong magnetic fields are important tools for a variety of high-frequency superconducting devices. Magnetic fields degrade resonator performance by creating Abrikosov vortices that cause resistive losses and frequency fluctuations or suppress the superconductivity entirely. To...article 2019
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TNO Industrie en Techniek (author), Hamelinck, R.F.M.M. (author), Rosielle, P.C.J.N. (author), Steinbuch, M. (author), Ellenbroek, R.M.L. (author), Verhaegen, M. (author), Doelman, N.J. (author)In the design of a large adaptive deformable membrane mirror, variable reluctance actuators are used. These consist of a closed magnetic circuit in which a strong permanent magnet provides a static magnetic force on a ferromagnetic core which is suspended in a membrane. By applying a current through the coil which is situated around the magnet,...conference paper 2006