Print Email Facebook Twitter Terahertz Band-Pass Filters for Wideband Superconducting On-chip Filter-bank Spectrometers Title Terahertz Band-Pass Filters for Wideband Superconducting On-chip Filter-bank Spectrometers Author Pascual Laguna, A. (TU Delft Tera-Hertz Sensing) Karatsu, K. (TU Delft Tera-Hertz Sensing) Thoen, David (TU Delft Tera-Hertz Sensing) Murugesan, Vignesh (SRON Netherlands Institute for Space Research) Buijtendorp, B.T. (TU Delft Tera-Hertz Sensing) Endo, A. (TU Delft Tera-Hertz Sensing) Baselmans, J.J.A. (TU Delft Tera-Hertz Sensing) Date 2021 Abstract A superconducting microstrip half-wavelength resonator is proposed as a suitable band-pass filter for broadband moderate spectral resolution spectroscopy for terahertz (THz) astronomy. The proposed filter geometry has a free spectral range of an octave of bandwidth without introducing spurious resonances, reaches a high coupling efficiency in the pass-band and shows very high rejection in the stop-band to minimize reflections and cross-talk with other filters. A spectrally sparse prototype filter-bank in the band 300400 GHz has been developed employing these filters as well as an equivalent circuit model to anticipate systematic errors. The fabricated chip has been characterized in terms of frequency response, reporting an average peak coupling efficiency of 27% with an average spectral resolution of 940. Subject Astronomyband-pass filterCouplingsDESHIMAFilter banksfilterbankMicrostrip filtersMicrowave filtersmicrowave kinetic inductance detector (MKID)on-chipResonator filtersResonatorsspectrometersuperconductingSuperconducting filtersterahertz (THz)wideband To reference this document use: http://resolver.tudelft.nl/uuid:cf1da866-bd5f-402b-a2ef-9e448db0cab3 DOI https://doi.org/10.1109/TTHZ.2021.3095429 Embargo date 2022-04-04 ISSN 2156-342X Source IEEE Transactions on Terahertz Science and Technology, 11 (6), 635-646 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2021 A. Pascual Laguna, K. Karatsu, David Thoen, Vignesh Murugesan, B.T. Buijtendorp, A. Endo, J.J.A. Baselmans Files PDF Terahertz_Band_Pass_Filte ... meters.pdf 3.17 MB Close viewer /islandora/object/uuid:cf1da866-bd5f-402b-a2ef-9e448db0cab3/datastream/OBJ/view