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.
A passive terahertz video camera based on lumped element kinetic inductance detectors / Rowe, S., Pascale, E., Doyle, S., Dunscombe, C., Hargrave, P., Papageorgio, A., Wood, K., Ade, P.A.R., Barry, P., Bideaud, A., Brien, T., Dodd, C., Grainger, W., House, J., Mauskopf, P., Moseley, P., Spencer, L., Sudiwala, R., Tucker, C., Walker, I.. - In: REVIEW OF SCIENTIFIC INSTRUMENTS. - ISSN 0034-6748. - 87:3(2016), p. 033105. [10.1063/1.4941661]
A passive terahertz video camera based on lumped element kinetic inductance detectors
PASCALE, ENZO;MAUSKOPF, PHILIP;
2016
Abstract
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.| File | Dimensione | Formato | |
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