Three-dimensional shape reconstruction in millimeter-terahertz wave regions with carbon nanotube film array scanners

This paper reports three-dimensional shape restoration in the millimeter waves frequency region. A millimeter-wave sensors, consisting of aligned carbon nanotube film channels, serves as a non-destructive reflective monitoring system of multi-layered curvilinear objects. Also, a simple algorithm facilitates to estimate the distance of the target via analyzing the signals obtained by the scanners. The proposed method enriches millimeter-wave sensing and monitoring technologies, and is potentially applicable to the medical field, inline inspections of products, and non-destructive inspections.