ABSTRACT

Terahertz (THz) technology [1] has come a long way since Fleming [2] in 1974 used the term “terahertz” (THz) to describe spectral line frequency coverage of a Michelson interferometer. THz is a form of light, part of the electromagnetic spectrum that lls the wavelength range from 1 mm to 100 µm (300 GHz-3 THz). Compared to x-ray energy, THz waves provide noninvasive and nonionizing imaging due to their low photon energy. THz technology [1,6-8] has opened a new horizon of remarkable opportunities within ever-growing industrial applications, wirelessdata communications [7,9,10], material spectroscopy and sensing [6,16], monitoring and spectroscopy in science and the pharmaceutical industry [16-18], food industry, security, aerospace, oil industry, hidden object detection [21], and medical imaging.