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30 April 2009 Uncooled detector, optics, and camera development for THz imaging
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Abstract
A prototype THz imaging system based on modified uncooled microbolometer detector arrays, INO MIMICII camera electronics, and a custom f/1 THz optics has been assembled. A variety of new detector layouts and architectures have been designed; the detector THz absorption was optimized via several methods including integration of thin film metallic absorbers, thick film gold black absorbers, and antenna structures. The custom f/1 THz optics is based on high resistivity floatzone silicon with parylene anti-reflection coating matched to the wavelength region of interest. The integrated detector, camera electronics, and optics are combined with a 3 THz quantum cascade laser for initial testing and evaluation. Future work will include the integration of fully optimized detectors and packaging and the evaluation of the achievable NEP with an eye to future applications such as industrial inspection and stand-off detection.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Timothy Pope, Michel Doucet, Fabien Dupont, Linda Marchese, Bruno Tremblay, Georges Baldenberger, Sonia Verrault, and Frédéric Lamontagne "Uncooled detector, optics, and camera development for THz imaging", Proc. SPIE 7311, Terahertz Physics, Devices, and Systems III: Advanced Applications in Industry and Defense, 73110L (30 April 2009); https://doi.org/10.1117/12.819923
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