Contributions to the analysis of substances with time-domain terahertz spectroscopy

Marian Vlădescu; Paul Şchiopu; Alexandru Crăciun; Alina-Elena Marcu; Ana Bărar; Victor Damian; Adrian Tulbure

doi:10.1117/12.2571746

31 December 2020 Contributions to the analysis of substances with time-domain terahertz spectroscopy

Marian Vlădescu, Paul Şchiopu, Alexandru Crăciun, Alina-Elena Marcu, Ana Bărar, Victor Damian, Adrian Tulbure

Proceedings Volume 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X; 1171829 (2020) https://doi.org/10.1117/12.2571746
Event: Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies 2020, 2020, Online Only

Abstract

Time-Domain Terahertz Spectroscopy (TDTS) is a rapidly developing measurement technique constantly finding new applications in various areas of materials science such as measurements of material constants of solids [1]. Terahertz frequencies i.e. frequencies from tens of GHz to few THz, lay between the operation ranges of classical microwave and infrared spectroscopy and thus cannot be effectively covered by any of these techniques. TDTS fills this gap enabling the study of materials properties in the part of the electromagnetic spectrum that is of a particular interest for the materials science [2, 4]. TDTS is the only applicable far-infrared spectroscopic technique. Far infrared imaging based on TDTS is currently an extremely promising way of non-destructive method for testing samples from substances. In the proposed article there are presented the results of measurements we have made upon some pharmaceuticals and pesticides, using our own experimental setup for TDTS.

Citation Download Citation

Marian Vlădescu, Paul Şchiopu, Alexandru Crăciun, Alina-Elena Marcu, Ana Bărar, Victor Damian, and Adrian Tulbure "Contributions to the analysis of substances with time-domain terahertz spectroscopy", Proc. SPIE 11718, Advanced Topics in Optoelectronics, Microelectronics and Nanotechnologies X, 1171829 (31 December 2020); https://doi.org/10.1117/12.2571746

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