Shewchun J, Garside B K, Ballik E A, Kwan C C, Elsherbiny M M, Hogenkamp G, Kazandjian A
Appl Opt. 1976 Feb 1;15(2):340-6. doi: 10.1364/AO.15.000340.
Measurements have been made with a line tunable CO(2) laser on ozone in order to establish some useful criteria for pollution monitoring via the direct absorption scheme. The absorption coefficient a and the pressure dependence of the extinction coefficient k(nu)(P) at frequencies nu corresponding to the P(8) to P(36) vibration-rotation lines of the CO(2) laser have been measured. Good agreement has been found with theory (within the framework of Lorentz and Doppler broadenings) for these experimental observations. It has been found that foreign gas species lines within +/-0.1 cm(-1) of the laser line can contribute significantly to the absorption process if their absorption intensities are not more than an order of magnitude below the intensity of the gas species being monitored.
已使用线可调谐二氧化碳激光对臭氧进行测量，以便通过直接吸收方案建立一些用于污染监测的有用标准。测量了对应于二氧化碳激光的P(8)至P(36)振动-转动线频率ν处的吸收系数α以及消光系数k(ν)(P)的压力依赖性。对于这些实验观测结果，已发现与理论（在洛伦兹和多普勒展宽框架内）有良好的一致性。已发现，如果激光线±0.1厘米(-1)范围内的外来气体物种谱线的吸收强度不低于被监测气体物种强度一个数量级以上，则它们可对吸收过程有显著贡献。
