Paper
8 October 2018 About influence of effect of multi-playing of frequency for broadband THz pulse on detection and identification of substances
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Abstract
We discuss an appearance of the false absorption frequencies which are caused by process of the frequency conversion at action of the broadband THz pulse. The physical reason of their occurrence is discussed. A way for definition of the false absorption frequencies is proposed. A few experiments, which suppose the existence of such frequencies, are presented. However, we propose using of the up-conversion of THz frequencies for the detection and identification of substances.
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Vyacheslav A. Trofimov "About influence of effect of multi-playing of frequency for broadband THz pulse on detection and identification of substances", Proc. SPIE 10802, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies II, 1080204 (8 October 2018); https://doi.org/10.1117/12.2326789
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KEYWORDS
Terahertz radiation

Picosecond phenomena

Absorption

Polarization

Harmonic generation

Dielectrics

Molecules

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