Wearable Terahertz Scanner Made with Carbon NanotubesEngineering360 News Desk | November 22, 2016
Imaging devices based on terahertz waves are most widely known for the bulky equipment use for security screening at airports. Terahertz rays also show promise for non-invasive imaging of human tissues, providing that difficulties in reproducing the curved contours of 3D objects are overcome.
Researchers at Tokyo Institute of Technology used arrays of carbon nanotubes (CNTs) to design a terahertz scanning system that can image curved 3D surfaces.
The flexible scanner integrates 23 CNT detector elements into a portable, wearable device without the need for planar antennas since the CNT films absorb electromagnetic radiation over a broad terahertz range.
The device was used for active imaging of flat and curved samples, multiview scanning of cylindrical samples, and passive wearable imaging of a human hand (see video).
Applications are expected to include noninvasive inspections in pharmaceutics, food quality control, and medical monitoring.