RELATIVE RAMAN CROSS SECTION FOR N2, O2, CO, CO2, SO2, AND H2S

Abstract

The relative Raman cross sections of gases which are of interest in atmospheric pollutant studies have been measured at 5145 Å. These relative cross sections compared to that of N₂ are as follows: O₂ (1.2), CO (0.91), CO₂ (1.5), SO₂ (5.5), and H₂S (6.6). The Raman cross section of N₂ compared to that of benzene has also been measured. Using the absolute cross section of benzene determined by Skinner and Nilsen, the measured Raman cross section of N₂ is σN₂ = (2.6 ± 1) × 10⁻³¹ cm²/sr at 5145 Å.