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

Rowe, Sam, Pascale, Enzo ORCID:, Doyle, Simon ORCID:, Dunscombe, Chris, Hargrave, Peter ORCID:, Papageorgiou, Andreas, Wood, Ken, Ade, Peter A. R. ORCID:, Barry, Peter, Bideaud, Aurelien, Brien, Tom, Dodd, Chris, Grainger, William, House, Julian, Mauskopf, Philip ORCID:, Moseley, Paul, Spencer, Locke, Sudiwala, Rashmi ORCID:, Tucker, Carole ORCID: 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 Oct 2023 19:05

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