V. L. Vaks, V. A. Anfertev, V. Yu Balakirev, S. A. Basov, E. G. Domracheva, A. V. Illyuk, P. V. Kupriyanov, S. I. Pripolzin, M. B. Chernyaeva, “High resolution terahertz spectroscopy for analytical applications”, UFN, 2020, Volume 190, Number 7,Pages <nobr>763

This article is cited in 32 papers

INSTRUMENTS AND METHODS OF INVESTIGATION

High resolution terahertz spectroscopy for analytical applications

V. L. Vaks^ab, V. A. Anfertev^b, V. Yu Balakirev^b, S. A. Basov^b, E. G. Domracheva^b, A. V. Illyuk^b, P. V. Kupriyanov^c, S. I. Pripolzin^b, M. B. Chernyaeva^ab

^a Lobachevsky State University of Nizhny Novgorod
^b Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod
^c Research and Production Corporation `Istok' named after Shokin, Fryazino, Moscow region

Abstract: The latest achievements in the area of terahertz spectrometers based on transient effects are presented. The potential to use these spectrometers in various applications demanding the composition analysis of multicomponent gas mixtures simultaneously with a high sensitivity (at the ppb level) and resolving power is considered. The results obtained with the use of transient terahertz spectroscopy for medical diagnostics, security systems, etc. are shown.

Keywords: terahertz frequency range, high resolution spectroscopy, phase switching of radiation acting on gas, fast frequency sweep, multichannel spectroscopy method, multicomponent gas mixture, exhaled air, biological liquid vapors, medical diagnostics, vapors of high energy substances.

PACS: 07.57.Pt, 33.20.−t

Received: May 16, 2019
Revised: July 10, 2019
Accepted: July 11, 2019

DOI: 10.3367/UFNr.2019.07.038613