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 language | English (US) |
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Article number | 033105 |
Journal | Review of Scientific Instruments |
Volume | 87 |
Issue number | 3 |
DOIs | |
State | Published - Mar 1 2016 |
ASJC Scopus subject areas
- Instrumentation