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A passive terahertz video camera based on lumped element kinetic inductance detectors

Rowe, Sam, Pascale, Enzo, Doyle, Simon, Dunscombe, Chris, Hargrave, Peter, Papageorgiou, Andreas, Wood, Ken, Ade, Peter A. R., Barry, Peter, Bideaud, Aurelien, Brien, Tom, Dodd, Chris, Grainger, William, House, Julian, Mauskopf, Philip, Moseley, Paul, Spencer, Locke, Sudiwala, Rashmi, Tucker, Carole and Walker, Ian 2016. A passive terahertz video camera based on lumped element kinetic inductance detectors. Review of Scientific Instruments 87 (3) , 033105. 10.1063/1.4941661

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We have developed a passive 350 GHz (850 μm) video-camera to demonstrate lumped element kinetic inductance detectors (LEKIDs)—designed originally for far-infrared astronomy—as an option for general purpose terrestrial terahertz imaging applications. The camera currently operates at a quasi-video frame rate of 2 Hz with a noise equivalent temperature difference per frame of ∼0.1 K, which is close to the background limit. The 152 element superconducting LEKID array is fabricated from a simple 40 nm aluminum film on a silicon dielectric substrate and is read out through a single microwave feedline with a cryogenic low noise amplifier and room temperature frequency domain multiplexing electronics.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Uncontrolled Keywords: low noise amplifiers superconducting arrays infrared imaging video cameras infrared astronomy aluminium terahertz wave imaging silicon kinetic inductance detectors
Publisher: AIP Publishing
ISSN: 0034-6748
Date of First Compliant Deposit: 30 March 2016
Date of Acceptance: 23 January 2016
Last Modified: 11 Feb 2021 02:49

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