TDS

TDS, for Time Domain System, or Time Domain Spectroscopy, refers to terahertz systems using a femtosecond laser to generate ultra short pulses. The frequency band of these systems is typically 0.1 to 4 THz for systems using photoconductive antennas. It is also possible to reach much wider frequency bands using crystals or air plasma generation.

Varnish Ageing characterization with terahertz waves

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This paper focuses on the analysis of time-domain data regarding the measurements conducted on a French Renaissance painting realized on a metal substrate (copper). We specifically focus on the dielectric characterization of the varnish layer and its ageing consequences on THz images. Principal investigators are Quentin Cassar and Corinna Koch Dandolo. The painting The oil … Read more

Study of blood plasma optical properties in mice grafted with Ehrlich carcinoma in the frequency range 0.1 – 1.0 THz

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In the course of in vitro studies of blood of laboratory animals with progressing Ehrlich carcinoma, we have revealed the change of the blood plasma optical properties in the THz range, which can be used for developing the express diagnostics of the presence of oncological diseases. An applied software package is elaborated that allows the … Read more

Terahertz biophotonics as a tool for studies of dielectric and spectral properties of biological tissues and liquids

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In this review, we describe dielectric properties of biological tissues and liquids in the context of terahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More (THz) biophotonics. We discuss a model of the THz dielectric permittivity of water and … Read more

Terahertz Spectroscopy and Quantum Mechanical Simulations of Crystalline Copper-Containing Historical Pigments

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TerahertzTerahertz radiation is electromagnetic energy commonly associated with frequencies around 0.1 to 10 THz, between microwaves and infrared, where many materials reveal distinctive propagation, absorption, and imaging behavior. More spectroscopy is a non-destructive analytical technique used in artTerahertz technology offers a powerful, non-invasive way to explore and preserve works of art and cultural heritage objects. … Read more

Aeronautics composite material inspection with a terahertz time-domain spectroscopy system

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Ospald, F., Zouaghi, W., Beigang, R., Matheis, C., Jonuscheit, J., Recur, B., … & González, L. V. (2014). Aeronautics composite material inspection with a terahertz time-domain spectroscopy system. Optical Engineering, 53(3), 031208-031208.

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