6 October 2017 Investigation of radiant millimeter wave/terahertz radiation from low-infrared signature targets
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Abstract
Millimeter (mm) and sub-mm wave radiation is increasingly becoming a region of interest as better methods are developed to detect in this wavelength range. The development of sensitive focal plane array (FPA) architectures as well as single pixel scanners has opened up a new field of passive detection and imaging. Spectral signatures of objects, a long standing area of interest in the Short Wave Infrared (SWIR), Mid-Wave (MWIR) and Long Wave-IR (LWIR) bands can now be assessed in the mm-wave/terahertz (THz) region. The advantage is that this form of radiation is not as adversely affected by poor atmospheric conditions compared to other bands. In this study, a preliminary experiment in a laboratory environment is performed to assess the radiance from targets with low infrared signatures in the millimeter wave/terahertz (THz) band (<1 THz). The goal of this approach is to be able to model the experimental results to better understand the mm-wave/THz signature of targets with low observability in the IR bands.
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B. Aytaç, Ü. Alkuş, M. Sivaslıgil, A. B. Şahin, H. Altan, "Investigation of radiant millimeter wave/terahertz radiation from low-infrared signature targets ", Proc. SPIE 10439, Millimetre Wave and Terahertz Sensors and Technology X, 1043903 (6 October 2017); doi: 10.1117/12.2278095; https://doi.org/10.1117/12.2278095
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