M Scheller - Journal of Infrared, Millimeter, and Terahertz Waves, 2014 - Springer
The potential of terahertz (THz) time domain spectroscopy to simultaneously determine the complex dielectric parameters of materials and their geometrical thickness is of high interest …
The use of numerical methods for thickness extraction in terahertz time-domain spectroscopy (THz-TDS) is highly deterministic in improving the accuracy of optical …
Terahertz time-domain spectroscopy (THz–TDS) relies heavily on knowing precisely the thickness or refractive index of a material. In practice, one of these values is assumed to be …
L Liebermeister, S Nellen, RB Kohlhaas… - Journal of Infrared …, 2021 - Springer
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 …
D Stanze, B Globisch, RJB Dietz… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
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 …
M Yahyapour, A Jahn, K Dutzi, T Puppe, P Leisching… - Applied Sciences, 2019 - mdpi.com
Featured Application Terahertz thickness gauging of polymers and paint layers; one- hundred percent inspection of plastic pipes; process control. Abstract We apply a fast …
Terahertz time-domain spectroscopy (THz-TDS) has emerged as a main spectroscopic modality to fill the frequency range between a few hundred gigahertz to a few terahertz. This …
A simple and precise method based on fixed-point iteration is used to estimate dielectric parameters using terahertz time-domain spectroscopy (THz-TDS). The method converges …
We present a low cost terahertz (THz) spectrometer with coherent detection based on two simple and robust dipole antennas driven by two laser diodes. The spectrometer covers …