Print Email Facebook Twitter Superconducting Integrated Circuits at Sub-millimeter Wavelengths Title Superconducting Integrated Circuits at Sub-millimeter Wavelengths Author Hähnle, S.A. (TU Delft Tera-Hertz Sensing) Contributor Baselmans, J.J.A. (promotor) Endo, A. (copromotor) Degree granting institution Delft University of Technology Date 2021-11-15 Abstract Superconducting integrated circuits (SICs) represent a natural step forward for devices operating at frequencies from microwave up to sub-millimeter wavelengths. They offer massive miniaturization via compact design based on low-loss superconducting transmission lines. At sub-millimeter wavelengths, the development of SICs is driven by astronomical instruments where it could allow the realization of an imaging spectrometer, combining simultaneous imaging and spectroscopy capabilities into a single instrument analogous to integral field units in the infrared and optical regimes. Such an imaging spectrometer can be achieved with SICs by integrating the required elements, such as spectral filters and polarizers, with the detectors onto a single chip. Without this integration, the dispersive system for even a single spatial pixel at these wavelengths would be prohibitively large and could not be realistically scaled up to allow imaging. Astronomical signals are exceedingly weak, typically requiring many nights of exposure to get a good signal to noise ratio. It is therefore imperative that the instrument has minimal losses before its detectors. As a consequence, the losses of each element in the SIC needs to be minimized, which requires careful characterization of the individual elements, including antenna, filters, detectors and connecting transmission lines. The primary focus of this thesis lies on the experimental characterization of the wideband antenna and the low-loss superconducting transmission lines. Subject Sub-millimeter systemsTransmission LinesDielectric LossRadiation LossSub-millimeter LossFabry–PérotLow-temperature Detectors To reference this document use: https://doi.org/10.4233/uuid:91047108-e77e-4d3b-956e-1e97ee8f8c47 ISBN 978-94-6421-528-1 Embargo date 2021-11-15 Part of collection Institutional Repository Document type doctoral thesis Rights © 2021 S.A. Hähnle Files PDF Superconducting_Integrate ... engths.pdf 22.11 MB Close viewer /islandora/object/uuid:91047108-e77e-4d3b-956e-1e97ee8f8c47/datastream/OBJ/view