Design of an integrated filterbank for DESHIMA: On-chip submillimeter imaging spectrograph based on superconducting resonators

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Abstract

An integrated filterbank (IFB) in combination with microwave kinetic inductance detectors (MKIDs), both based on superconducting resonators, could be used to make broadband submillimeter imaging spectrographs that are compact and flexible. In order to investigate the possibility of adopting an IFB configuration for DESHIMA (Delft SRON High-redshift Mapper), we study the basic properties of an IFB circuit using electromagnetic simulation. In an idealized situation, one could integrate onto a 4-inch wafer a 9 pixel × 920 color 3 dimensional imaging device, which instantaneously covers multiple submillimeter telluric windows with a resolving power of f/df = 1000. We also simulate a slightly more realistic situation, in which the dimensions of the filters differ from their designed values, to see how fabrication errors introduce scattering in the transmission of the channels. © Springer Science+Business Media, LLC 2012.

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Endo, A., Janssen, R. M. J., De Visser, P. J., Klapwijk, T. M., Van Der Werf, P., Baselmans, J. J. A., … Baryshev, A. M. (2012). Design of an integrated filterbank for DESHIMA: On-chip submillimeter imaging spectrograph based on superconducting resonators. In Journal of Low Temperature Physics (Vol. 167, pp. 341–346). https://doi.org/10.1007/s10909-012-0502-1

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