Raman Gas Analyzer Based on a Multimode Diode Laser

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2025-03-07 DOI:10.1134/S0020441224702038

M. A. Kostenko, I. I. Matrosov, A. R. Zaripov, A. S. Tanichev, V. K. Volkov, S. D. Korkishko, D. V. Petrov

引用次数: 0

Abstract

The article presents the concept of gas analyzer based on Raman spectroscopy where a multimode blue diode laser is used as an excitation source. Methods for reducing the spectral width of the radiation of such a laser due to external feedback have been investigated. It has been shown that, when an optical scheme based on Fabry–Pero interferometer is used for this purpose, the resolution of the recorded Raman spectra can reach 8 cm^–1. The performance of the developed Raman gas analyzer is presented and discussed. It was established that the achieved signal-to-noise ratio at the analysis time of 2 s allows detection of any type of molecule with concentration of >1%.

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基于多模二极管激光器的拉曼气体分析仪

提出了用多模蓝色二极管激光器作为激发源的基于拉曼光谱的气体分析仪的概念。已经研究了由于外部反馈而减小这种激光器辐射光谱宽度的方法。结果表明，采用基于Fabry-Pero干涉仪的光学方案，记录的拉曼光谱分辨率可达8 cm-1。介绍并讨论了所研制的拉曼气体分析仪的性能。结果表明，在2 s的分析时间内，所获得的信噪比允许检测浓度为1%的任何类型的分子。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.