A Terahertz Video Camera Patch Sheet with an Adjustable Design based on Self‐Aligned, 2D, Suspended Sensor Array Patterning

Abstract Terahertz (THz) imaging is expected to become powerful tools for non‐destructive inspections. To ensure the practical use of THz non‐destructive monitoring, versatile THz imagers with adjustable designs that can eliminate the complexities and the bulkiness of the device are urgently required. Herein, a self‐aligned filtration process for a 2D, free‐standing carbon nanotube film array and its application to a THz video camera patch are reported. The presented techniques enable a) to freely design the camera size, sensor array pattern, and suspended shape according to its applications, b) to cut the camera patch into desired shapes, and c) to attach them to the objects that are intended to be measured. Real‐time, non‐destructive monitoring of various infrastructures is demonstrated. These results indicate that it can function regardless of restrictions, such as the shapes and locations of the measurement samples, thus providing a strong possibility for use in future non‐destructive sensor networks.