The quality of coatings in industrial applications and scientific research with thicknesses in
the micrometer range is an important criterion for quality management. Therefore, thickness …

Nowadays, aircrafts and cars are coated with several layers of coating. Hence, demands for
thickness monitoring of each individual layer within a multi-layer coating system are rising …

There is a minimum measurable thickness when gauging micron-level coating films with
time-of-flight based terahertz thickness measurement technologies. To improve this …

A bstract We compare a state-of-the-art terahertz (THz) time domain spectroscopy (TDS)
system and a novel optoelectronic frequency domain spectroscopy (FDS) system with …

We present a multilayer thickness measurement system based on optoelectronic continuous
wave THz spectroscopy. Due to its wide tuning range, high frequency resolution, and fast …

Time-domain spectroscopy (TDS) in the terahertz (THz) frequency range is gaining in
importance in nondestructive testing of dielectric materials. One application is the layer …

We present a novel approach to determine the individual layer thickness in a dielectric
multilayer sample using pulsed terahertz spectroscopy in reflection geometry. In a first step …

In many industrial fields, like automotive and painting industry, the thickness of thin layers is
a crucial parameter for quality control. Hence, the demand for thickness measurement …

Thermal barrier coatings (TBCs) are insulation coatings for turbine blades in aero-engines,
and the thickness of topcoat (TC) is the key factor in determining the insulation performance …

This study investigates the applicability of a novel noncontact single-sided terahertz
electromagnetic measurement method for measuring thickness in dielectric coating systems …