title: A passive terahertz video camera based on lumped element kinetic inductance detectors.
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.
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Sam
authors.initials: S
authors.lastname: Rowe
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Enzo
authors.initials: E
authors.lastname: Pascale
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Simon
authors.initials: S
authors.lastname: Doyle
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Chris
authors.initials: C
authors.lastname: Dunscombe
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Hargrave
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Andreas
authors.initials: A
authors.lastname: Papageorgio
authors.affiliation: QMC Instruments Ltd., School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Ken
authors.initials: K
authors.lastname: Wood
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Peter A R
authors.initials: PA
authors.lastname: Ade
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Peter
authors.initials: P
authors.lastname: Barry
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Aurélien
authors.initials: A
authors.lastname: Bideaud
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Tom
authors.initials: T
authors.lastname: Brien
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Chris
authors.initials: C
authors.lastname: Dodd
authors.affiliation: Rutherford Appleton Laboratory, STFC, Swindon SN2 1SZ, United Kingdom.
authors.forename: William
authors.initials: W
authors.lastname: Grainger
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Julian
authors.initials: J
authors.lastname: House
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Philip
authors.initials: P
authors.lastname: Mauskopf
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Paul
authors.initials: P
authors.lastname: Moseley
authors.affiliation: Department of Physics and Astronomy, University of Lethbridge, Lethbridge, Alberta T1K 3M4, Canada.
authors.forename: Locke
authors.initials: L
authors.lastname: Spencer
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Rashmi
authors.initials: R
authors.lastname: Sudiwala
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Carole
authors.initials: C
authors.lastname: Tucker
authors.affiliation: Astronomy Instrumentation Group, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom.
authors.forename: Ian
authors.initials: I
authors.lastname: Walker