Title :
A passive, real-time, terahertz camera for security screening, using superconducting microbolometers
Author :
Grossman, E.N. ; Dietlein, C.R. ; Leivo, M. ; Rautiainen, A. ; Luukanen, A.
Author_Institution :
Optoelectron. Div., Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
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.
Keywords :
bolometers; cameras; microsensors; security; sensor arrays; submillimetre wave imaging; superconducting devices; terahertz wave imaging; broadband terahertz camera; hot spot microbolometers; linear array; passive camera; real-time camera; security screening; superconducting microbolometers; superconducting sensor array; Cameras; Clothing; Equations; Image sensors; Layout; Security; Sensor arrays; Sensor phenomena and characterization; Superconducting device noise; Temperature sensors; Microbolometer; camera; superconducting; terahertz;
Conference_Titel :
Microwave Symposium Digest, 2009. MTT '09. IEEE MTT-S International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2803-8
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2009.5165981
