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Proceedings Paper

Application of terahertz spectroscopy for characterization of biologically active organic molecules in natural environment
Author(s): Mindaugas Karaliūnas; Vytautas Jakštas; Kinan E. Nasser; Rimvydas Venckevičius; Andrzej Urbanowicz; Irmantas Kašalynas; Gintaras Valušis
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Paper Abstract

In this work, a comparative research of biologically active organic molecules in its natural environment using the terahertz (THz) time domain spectroscopy (TDS) and Fourier transform spectroscopy (FTS) systems is carried out. Absorption coefficient and refractive index of Nicotiana tabacum L. leaves containing nicotine, Cannabis sativa L. leaves containing tetrahydrocannabinol, and Humulu lupulus L. leaves containing α-acids, active organic molecules that obtain in natural environment, were measured in broad frequency range from 0.1 to 13 THz at room temperature. In the spectra of absorption coefficient the features were found to be unique for N. tabacum, C. sativa and H. lupulus. Moreover, those features can be exploited for identification of C. sativa sex and N. tabacum origin. The refractive index can be also used to characterize different species.

Paper Details

Date Published: 26 September 2016
PDF: 7 pages
Proc. SPIE 9934, Terahertz Emitters, Receivers, and Applications VII, 99340P (26 September 2016); doi: 10.1117/12.2238242
Show Author Affiliations
Mindaugas Karaliūnas, Ctr. for Physical Sciences and Technology (Lithuania)
Vytautas Jakštas, Ctr. for Physical Sciences and Technology (Lithuania)
Kinan E. Nasser, Ctr. for Physical Sciences and Technology (Lithuania)
Rimvydas Venckevičius, Ctr. for Physical Sciences and Technology (Lithuania)
Andrzej Urbanowicz, Ctr. for Physical Sciences and Technology (Lithuania)
Irmantas Kašalynas, Ctr. for Physical Sciences and Technology (Lithuania)
Gintaras Valušis, Ctr. for Physical Sciences and Technology (Lithuania)


Published in SPIE Proceedings Vol. 9934:
Terahertz Emitters, Receivers, and Applications VII
Manijeh Razeghi; Alexei N. Baranov; John M. Zavada; Dimitris Pavlidis, Editor(s)

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