A passive, real-time, terahertz camera for security screening, using superconducting microbolometers

We describe a broadband terahertz camera based on a modular 64-element linear array of hot-spot microbolometers Unlike many superconducting sensor arrays, the readout for this array is performed by entirely uncooled electronics; no SQUIDs or cryogenic HEMTs are employed. The operating principles for...

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Bibliographic Details
Main Authors: Grossman, E.N., Dietlein, C.R., Leivo, M., Rautiainen, A., Luukanen, A.
Format: Conference Proceeding
Language:English
Subjects:
camera
Cameras
Equations
Image sensors
Layout
Microbolometer
Security
Sensor arrays
Sensor phenomena and characterization
superconducting
Superconducting device noise
Temperature sensors
terahertz
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Description
Summary:We describe a broadband terahertz camera based on a modular 64-element linear array of hot-spot microbolometers Unlike many superconducting sensor arrays, the readout for this array is performed by entirely uncooled electronics; no SQUIDs or cryogenic HEMTs are employed. The operating principles for the microbolometer and the readout scheme are described and compared with those of similar superconducting sensors.
ISSN:0149-645X
2576-7216
DOI:10.1109/MWSYM.2009.5165981