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Instruments and methods of investigation


High resolution terahertz spectroscopy for analytical applications

 a, b,  a,  a,  a,  a, b,  a,  a,  a,  a, b
a Institute for Physics of Microstructures, Russian Academy of Sciences, ul. Ul'yanova 46, Nizhnii Novgorod, 603950, Russian Federation
b Lobachevsky State University of Nizhny Novgorod (National Research University), prosp. Gagarina 23, Nizhny Novgorod, 603950, Russian Federation

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 content 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.

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Fulltext is also available at DOI: 10.3367/UFNe.2019.07.038613
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 (all)
DOI: 10.3367/UFNe.2019.07.038613
URL: https://ufn.ru/en/articles/2020/7/f/
000575189200006
2-s2.0-85092463452
2020PhyU...63..708V
Citation: Vaks V L, Anfertev V A, Balakirev V Yu, Basov S A, Domracheva E G, Illyuk A V, Kupriyanov P V, Pripolzin S I, Chernyaeva M B "High resolution terahertz spectroscopy for analytical applications" Phys. Usp. 63 708–720 (2020)
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Received: 16th, May 2019, revised: 10th, July 2019, 11th, July 2019

Оригинал: Вакс В Л, Анфертьев В А, Балакирев В Ю, Басов С А, Домрачева Е Г, Иллюк А В, Куприянов П В, Приползин С И, Черняева М Б «Спектроскопия высокого разрешения терагерцевого частотного диапазона для аналитических приложений» УФН 190 765–776 (2020); DOI: 10.3367/UFNr.2019.07.038613

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