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