Print Email Facebook Twitter A split-cavity design for the incorporation of a DC bias in a 3D microwave cavity Title A split-cavity design for the incorporation of a DC bias in a 3D microwave cavity Author Cohen, M.A. (TU Delft QN/Steele Lab) Yuan, M. (TU Delft QN/Steele Lab) de Jong, B.W.A. (Student TU Delft) Beukers, Ewout (Student TU Delft) Bosman, S.J. (TU Delft QN/Steele Lab) Steele, G.A. (TU Delft QN/Steele Lab) Date 2017-04-24 Abstract We report on a technique for applying a DC bias in a 3D microwave cavity. We achieve this by isolating the two halves of the cavity with a dielectric and directly using them as DC electrodes. As a proof of concept, we embed a variable capacitance diode in the cavity and tune the resonant frequency with a DC voltage, demonstrating the incorporation of a DC bias into the 3D cavity with no measurable change in its quality factor at room temperature. We also characterize the architecture at millikelvin temperatures and show that the split cavity design maintains a quality factor Qi ∼ 8.8 × 105, making it promising for future quantum applications. To reference this document use: http://resolver.tudelft.nl/uuid:a46b8987-295d-4eb6-919b-b7dc631f024d DOI https://doi.org/10.1063/1.4981884 Embargo date 2018-04-24 ISSN 0003-6951 Source Applied Physics Letters, 110 (17) Part of collection Institutional Repository Document type journal article Rights © 2017 M.A. Cohen, M. Yuan, B.W.A. de Jong, Ewout Beukers, S.J. Bosman, G.A. Steele Files PDF 1.4981884.pdf 1.03 MB Close viewer /islandora/object/uuid:a46b8987-295d-4eb6-919b-b7dc631f024d/datastream/OBJ/view