Broadband Sub-terahertz Camera Based on Photothermal Conversion and IR Thermography

This paper describes a fast sub-terahertz (THz) camera that is based on the use of a quantum infrared camera coupled with a photothermal converter, called a THz-to-Thermal Converter (TTC), thus allowing fast image acquisition. The performance of the experimental setup is presented and discussed, wit...

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Bibliographic Details
Published in:Journal of infrared, millimeter and terahertz waves millimeter and terahertz waves, 2016-05, Vol.37 (5), p.448-461
Main Authors: Romano, M., Chulkov, A., Sommier, A., Balageas, D., Vavilov, V., Batsale, J. C., Pradere, C.
Format: Article
Language:English
Subjects:
Broadband
Cameras
Classical Electrodynamics
Converters
Electrical Engineering
Electronics and Microelectronics
Engineering
Engineering Sciences
Image acquisition
Infrared cameras
Instrumentation
Photothermal conversion
Thermography
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Summary:This paper describes a fast sub-terahertz (THz) camera that is based on the use of a quantum infrared camera coupled with a photothermal converter, called a THz-to-Thermal Converter (TTC), thus allowing fast image acquisition. The performance of the experimental setup is presented and discussed, with an emphasis on the advantages of the proposed method for decreasing noise in raw data and increasing the image acquisition rate. A detectivity of 160 pW Hz −0.5 per pixel has been achieved, and some examples of the practical implementation of sub-THz imaging are given.
ISSN:1866-6892
1866-6906
DOI:10.1007/s10762-015-0241-x