Terahertz (THz) waves, whose frequencies range between microwave and infrared, are part
of the electromagnetic spectrum. A gap exists in THz literature because investigating THz …

As the volume of composite parts continues to rise, quality and performance specifications
are becoming more and more demanding. In this context, robust and reliable nondestructive …

Nowadays, composite materials are widely used in building and construction industry, in
motor-vehicles, spacecrafts and aircrafts, and in biomedical science due to the ability of …

Terahertz (THz) technology has firmly established itself as an effective sensing and
nondestructive testing (NDT) technique for the detection of substances and physicochemical …

The reinforcement of polymer composites using plant fibres has received vast and growing
attention for investigation owing to their capability to serve as semi-structural materials …

The sub-terahertz (THz) frequency band has proved to be a noteworthy option for
nondestructive testing (NDT) of nonmetal aeronautics materials. Composite structures or …

Terahertz time-domain spectroscopy (THz-TDS) technology, a new powerful nondestructive
testing (NDT) method, can provide noninvasive, noncontact, nonionizing radiation to …

Pores are inevitably produced during the production of glass fiber reinforced polymers
(GFRP). Quantitative characterization of porosity is a most important aspect of performance …

A set of samples of glass fiber reinforced polymer composites with Teflon inclusions in the
shape of pentagram have been specifically designed and fabricated for the purpose of …

Terahertz time-domain spectroscopy (THz-TDS) provides a non-contact, non-destructive
method for evaluating different materials and their properties. This short review discusses …