Scientists 3D Print An Effective Terahertz Waveguide

- Nov 06, 2018-

The terahertz (THz) wave is the electromagnetic radiation at frequencies from 0.1 to 10 THz, which is located between the millimeter wave and the far infrared wave. Lacking effective means to produce, detect and disseminate, so it is referred to as the “Terahertz Gap.” Terahertz waves have great potential in non-destructive imaging,biomedicine and national security and defence because it penetrates most non-polar materials and does not cause ionization damage when covering the vibration and rotational energy levels of biological macromolecules.

The researchers used PLA to create the hollow waveguide. First, they need to 3D print a PLA disk to get the electromagnetic parameters of the material. The disk was printed on an Ultimaker 3D printer and characterized by terahertz time-domain spectroscopy (THz-TDS).

The hollow waveguide can not only reduce the transmission loss of terahertz wave in air, but also locate the terahertz wave effectively. The researchers concluded that by developing flexible long-space waveguides, they could achieve long-distance, low-cost THz sensing and imaging.

Effective Terahertz Waveguide

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