Time-resolved FRS detection of OH radical for chemical reactions rate measurement

被引：2

作者：

Plastinina, Daria M. ^{[1
]}

Koshlyakov, Pavel, V ^{[1
]}

Chesnokov, Evgeniy N. ^{[1
]}

机构：

[1] Chesnokov Voevodsky Inst Chem Kinet & Combust, Russian Acad Sci, Siberian Branch, Novosibirsk 630090, Novosibirsk Reg, Russia

来源：

LASER PHYSICS | 2024年 / 34卷 / 04期

基金：

俄罗斯科学基金会;

关键词：

hydroxyl radical; overtone; laser diode; time-resolved detection; Faraday rotation spectroscopy; FARADAY-ROTATION SPECTROSCOPY; BAND;

D O I：

10.1088/1555-6611/ad2bf8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The time-resolved Faraday rotation spectroscopy method with a DFB diode laser at 1434 nm was used to detect the hydroxyl radical OH in the first overtone region. Experiments were made at the most intense Q(3/2) line of the 2 pi 3/2 electronic term. The sufficient concentration for radical measurement is 2 x 1012 cm-3, with the resolving time approximately 10-6 s. This resolution is sufficient for studying fast chemical reactions, which was demonstrated by measuring the rate constant of the OH and dimethylsulfide reaction.

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页数：7

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