A Unique Focal Plane Array Detector for THz and MM Wave Imaging

Detecting explosives and weapons under clothing or in hand carried packages, and imaging terrain and objects through fog and smoke are two high-priority needs that can be met using light in the Terahertz frequency range. However, to image concealed threats, and aid in navigation in fog and smoke, a practical, low cost THz camera is needed. Intelligent Optical Systems (IOS) in collaboration with Rensselaer Polytechnic Institute (RPI) will address this need by developing a uniquely sensitive and affordable THz camera (specifically, a focal plane array - FPA - device). The new FPA will use an entirely new approach to the detection of THz light, completely distinct from other attempts to realize THz FPAs. IOS will combine its expertise in planar device development with the extensive experience of RPI in THz radiation theory and application development. In Phase I, the feasibility of developing a fast, portable THz camera for counter terrorism and navigation applications will be demonstrated. BENEFIT: With the new THz imaging system proposed here, the detection of concealed explosives and weapons will become widely possible. Such detection can effectively counter terrorist activities and save many innocent lives. Aircraft navigation aids to see through smoke and fog could become practical. Commercial applications would include both civilian and military security screening of people at transportation centers, public buildings, and other public locales, and could also include special aircraft navigation aids, and even medical imaging and industrial process control.