Kinetic inductance detectors for 200μm astronomy

Doyle, Simon Michael ORCID: https://orcid.org/0000-0002-9054-986X, Naylon, Jack, Cox, James, Mauskopf, Philip Daniel ORCID: https://orcid.org/0000-0001-6397-5516 and Porch, Adrian ORCID: https://orcid.org/0000-0001-5293-8883 2006. Kinetic inductance detectors for 200μm astronomy. Presented at: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, Orlando, FL, USA, 29-31 May 2006. Published in: Zmuidzinas, Jonas, Holland, Wayne S., Withington, Stafford and Duncan, William D. eds. Proceedings. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III. (6275) Bellingham, WA: The International Society for Optical Engineering, 10.1117/12.670200

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Abstract

Kinetic inductance detectors (KIDs) provide an attractive solution to the production of large detector arrays for use in ground and space based 200μm astronomy. KIDs work by measuring the change in quasi-particle density upon photon absorption in a high Q superconducting resonator. A change in quasi-particle density is measured by a shift in phase of a microwave probe signal of frequency equal to that of the resonant frequency of the KID. Such detectors have a fundamental noise limit owing to the quasi-particle recombination rate, which, in a KID fabricated from a high quality Niobium film can give sensitivities of 10-18W√Hz at 1K. Constructing KIDs of varying resonant frequencies coupled to a single transmission line provides a multiplexed detector array with simple low temperature electronics. Here we discuss the theoretical requirements for both ground and space based 200μm cameras with various radiation coupling schemes for this wavelength range using distributed and lumped element high Q resonators.

Item Type:	Conference or Workshop Item (Poster)
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	Astronomy ; Inductance ; Sensors ; Quasiparticles ; Resonators ; Detector arrays ; Electronics ; Cameras ; Multiplexing ; Niobium
Publisher:	The International Society for Optical Engineering
ISSN:	0277-786X
Related URLs:	Organisation
Last Modified:	27 Oct 2022 10:10
URI:	https://orca.cardiff.ac.uk/id/eprint/69185

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