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

Sam Rowe, Enzo Pascale, Simon Doyle, Chris Dunscombe, Peter Hargrave, Andreas Papageorgio, Ken Wood, Peter A R Ade, Peter Barry, Aurélien Bideaud, Tom Brien, Chris Dodd, William Grainger, Julian House, Philip Mauskopf, Paul Moseley, Locke Spencer, Rashmi Sudiwala, Carole Tucker, Ian Walker

Research output: Contribution to journalArticle

18 Scopus citations

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.

Original languageEnglish (US)
Article number033105
JournalReview of Scientific Instruments
Volume87
Issue number3
DOIs
StatePublished - Mar 1 2016

ASJC Scopus subject areas

  • Instrumentation

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    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. (2016). A passive terahertz video camera based on lumped element kinetic inductance detectors. Review of Scientific Instruments, 87(3), [033105]. https://doi.org/10.1063/1.4941661