Application Notes THz RB

The interest in terahertz electromagnetic radiation stems from the unique interactions of these rays with matter, which can be exploited in various applications. Terahertz waves excite molecular vibrations and lattice vibrations in materials, which make THz radiation very interesting for spectroscopy and material identification. Terahertz radiation is non-ionizing, very sensitive to water and hydration state, and transparent to non-polar substances such as nonconductive polymers, paper, packing material, etc. Therefore material irregularities, defects, enclosures, not seen with other techniques, can be visualized with terahertz radiation. THz radiation has therefore a high potential for the non-destructive materials testing.