Vol. 1, issue 02, article # 7

Andreev Yu. M., Geiko P. P., Zuev V. V., Romanovskii O. A., Solodukhin A. S., Trushin S. A. Nontraditional Bands of CO2 Laser Radiation in the Problems of Gas Analysis of the Atmosphere. // Atmospheric and oceanic optics. 1988. V. 1. No. 02. P. 51-56.
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Abstract:

The frequency transformations of nontraditional 4.3mm 1001-1000 and 10.6 m 0002-1001 CO2 laser radiation bands in ZnGeP2 monocrystals are investigated experimentally. The external peak efficiency of radiation frequency doubling of 4.3mm band was 8.4% and the internal one was 10.1%. The radiation peak power at sum frequency was 20% of the 4.3mm radiation power. The theoretical analysis has made it possible to use the transformed and natural radiation of nontraditional bands for measuring CO2 concentrations at the level 10-2 g/m3 and NO concentrations at the level 10-4 g/m3.