Rice D K
Appl Opt. 1973 Feb 1;12(2):218-25. doi: 10.1364/AO.12.000218.
An intracavity water vapor cell in conjunction with a CO laser was used to measure experimentally the absorptive losses introduced for nineteen of the laser emission lines. The results indicated that the existing theoretical models are inadequate for predicting actual absorptance values for water vapor partial pressures in excess of 100 Torr. The accepted spectral location of at least one water vapor absorption line was shown to be erroneous. A pressure broadening gas such as nitrogen was shown to increase the differential absorptive loss introduced by the water vapor for CO laser rotational lines. This result enhances the applicability of an intracavity water vapor cell as a device for limiting CO laser oscillation to lines having high atmospheric transmission.
将一个腔内水蒸气池与一台CO激光器相结合，用于通过实验测量19条激光发射线所引入的吸收损耗。结果表明，现有的理论模型不足以预测水蒸气分压超过100托时的实际吸收率值。至少一条水蒸气吸收线的公认光谱位置被证明是错误的。结果表明，诸如氮气之类的压力展宽气体可增加水蒸气对CO激光转动线所引入的微分吸收损耗。这一结果提高了腔内水蒸气池作为一种将CO激光振荡限制在具有高大气传输率的谱线的装置的适用性。
