Yates, S. J. C., Baselmans, J. J. A., Baryshev, A. M., Doyle, Simon  ORCID: https://orcid.org/0000-0002-9054-986X, Endo, A., Ferrari, L., Hochgürtel, S. and Klein, B.
2014.
Clean beam patterns with low crosstalk using 850 GHz microwave kinetic inductance detectors.
Journal of Low Temperature Physics
176
(5-6)
, pp. 761-766.
10.1007/s10909-013-1034-z
|
Abstract
We present modeling of distributed λ /4 microwave kinetic inductance detectors (MKIDs) showing how electromagnetic cross coupling between the MKID resonators can occur at frequencies corresponding to the microwave readout signal (∼ 4–8 GHz). We then show system beam pattern measurements in the reimaged focal plane of a 72 detector array of lens–antenna coupled MKIDs at 850 GHz, which enables a direct measure of any residual optical crosstalk. With use of transmission line bridges we see no residual cross coupling between MKIDs and hence low crosstalk down to the − 30 dB level, with near Gaussian shape (limited by reimaging optics) to − 10 dB level.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QC Physics |
| Publisher: | Springer |
| ISSN: | 0022-2291 |
| Date of Acceptance: | 15 December 2013 |
| Last Modified: | 31 Oct 2022 08:56 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/79280 |
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