8 December 2004 Passive mm-wave imager using HTS Josephson junction detectors
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Passive mm-wave imaging has great potential for all-weather flying aids and security applications. To achieve useful real time images of an ambient temperature scene, >100 detectors are required, and uptake of the technology has been limited by the high cost of detectors. We propose a novel, cost effective solution using integrated arrays of antenna-coupled HTS Josephson junction video detectors. Arrays of 16 antenna coupled YBa2Cu3O7 interface engineered junctions have been fabricated with a design centre frequency of ~100GHz, optically immersed behind a single lens. Detector characteristics have been compared to stochastic RCSJ model simulations, with the antenna represented by an equivalent circuit. A real time demonstration imager has been built, and the first images obtained.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard Humphreys, Richard Humphreys, Phil Hirst, Phil Hirst, Ryan Heath, Ryan Heath, Dave Elliner, Dave Elliner, Nick Parker, Nick Parker, Mark A. G. Smith, Mark A. G. Smith, } "Passive mm-wave imager using HTS Josephson junction detectors", Proc. SPIE 5619, Passive Millimetre-Wave and Terahertz Imaging and Technology, (8 December 2004); doi: 10.1117/12.578531; https://doi.org/10.1117/12.578531


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