Registration pollution of water by method of modulation intracavity laser spectroscopy

Sergey Bojko; Vladimir F. Gamalii

doi:10.1117/12.221102

21 September 1995 Registration pollution of water by method of modulation intracavity laser spectroscopy

Sergey Bojko, Vladimir F. Gamalii

Proceedings Volume 2503, Air Toxics and Water Monitoring; (1995) https://doi.org/10.1117/12.221102
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

In this work, the method of the modulation intracavity laser spectroscopy is shown to be candidate for investigation and quantitative analysis of organic pollutions in water. The test specimen is placed into the cavity of the multimode dye laser. When the Raman scattering line coincides with amplification spectrum of the active medium of the multimode laser the additional gain appears at the Stokes frequency. One can experimentally determine this gain and then determine concentration of pollution. Spectral width of the Raman lines are small (approximately 3 cm^-1), therefore a number of organic pollutions may be observed simultaneously. We have investigated stimulated Raman scattering from molecules of peridin (C₅H₅N) in water. In our conditions concentration sensitivity was 7 IO^-4M/1.

Citation Download Citation

Sergey Bojko and Vladimir F. Gamalii "Registration pollution of water by method of modulation intracavity laser spectroscopy", Proc. SPIE 2503, Air Toxics and Water Monitoring, (21 September 1995); https://doi.org/10.1117/12.221102

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