TY - GEN
T1 - Performance of cryogen-free THz detection and passive imaging systems
AU - Wood, K.
AU - Doyle, S.
AU - Sudiwala, R.
AU - Pascale, E.
AU - Rowe, S.
AU - Hargrave, P.
AU - Jones, T.
AU - Dunscombe, C.
AU - Grainger, W.
AU - Papageorgiou, A.
AU - Spencer, L.
AU - Mauskopf, P.
AU - Tucker, C.
AU - Ade, P.
PY - 2012
Y1 - 2012
N2 - We report the measured performance characteristics of a broadband (0.2 - 10 THz) bolometer instrument based on thin film superconducting technology. The technology is designed for operation both in liquid helium cryostats but also in an electrical cooling platform. We report a number of significant advantages that accrue to superconducting technology compared to semiconductor devices. Single pixel systems are now commercially available, and array devices are in development. We also report the performance of 'KIDCAM,' a passive THz imaging camera based on Lumped Element Kinetic Inductance Detectors (LEKIDs) operating at 250mK. Again no liquid cryogens are consumed. Furthermore the instrument can be automatically operated and remotely controlled and interrogated. Multi-layer mesh filters are an enabling technology, providing both high in-band transmission efficiency and high attenuation of unwanted frequencies - both aspects are crucial to achieve high sensitivity in a large optical throughput instrument. This technology shows great potential for deployment into non-laboratory operating conditions.
AB - We report the measured performance characteristics of a broadband (0.2 - 10 THz) bolometer instrument based on thin film superconducting technology. The technology is designed for operation both in liquid helium cryostats but also in an electrical cooling platform. We report a number of significant advantages that accrue to superconducting technology compared to semiconductor devices. Single pixel systems are now commercially available, and array devices are in development. We also report the performance of 'KIDCAM,' a passive THz imaging camera based on Lumped Element Kinetic Inductance Detectors (LEKIDs) operating at 250mK. Again no liquid cryogens are consumed. Furthermore the instrument can be automatically operated and remotely controlled and interrogated. Multi-layer mesh filters are an enabling technology, providing both high in-band transmission efficiency and high attenuation of unwanted frequencies - both aspects are crucial to achieve high sensitivity in a large optical throughput instrument. This technology shows great potential for deployment into non-laboratory operating conditions.
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U2 - 10.1109/IRMMW-THz.2012.6380242
DO - 10.1109/IRMMW-THz.2012.6380242
M3 - Conference contribution
AN - SCOPUS:84873475245
SN - 9781467315975
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - IRMMW-THz 2012 - 37th International Conference on Infrared, Millimeter, and Terahertz Waves
T2 - 37th International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2012
Y2 - 23 September 2012 through 28 September 2012
ER -