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首页> 外文期刊>The Journal of Chemical Physics >Comparing modeling and measurements of the output power in chemical oxygen-iodine lasers: A stringent test of I_2 dissociation mechanisms
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Comparing modeling and measurements of the output power in chemical oxygen-iodine lasers: A stringent test of I_2 dissociation mechanisms

机译：化学氧碘激光器中输出功率的建模与测量比较：I_2解离机制的严格测试

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摘要

A parametric study of the output power of supersonic chemical oxygen-iodine lasers (COILs) is carried out, applying a kinetic-fluid dynamics model calculations as well as an analytical model and comparing the results to experimental studies. The I_2 dissociation mechanism recently suggested by Azyazov [J. Chem. Phys. 130, 104306 (2009)], which was previously used for comparison of model calculations to measurements of the small signal gain [K. Waichman, J. Appl. Phys. 106, 063108 (2009)], is applied here for a similar, but more sensitive, comparison of the laser output power. The dependence of the power on iodine flow rate and on mirror transmission is studied for low and high pressure COILs, respectively. Good agreement between the calculated and measured power is obtained for both low and high pressure COILs only when the processes suggested by Azyazov are included in the calculations. This is different from the situation for the gain where for high pressure COILs, the calculated values were insensitive to the assumed dissociation mechanism, although for low pressure the measurements were reproduced only by applying the Azyazov mechanism. We believe that the results of the present work strongly support the application of this mechanism for modeling the COIL operation.
机译：对超音速化学氧碘激光器（COIL）的输出功率进行了参数研究，应用了动力学流体动力学模型计算和分析模型，并将结果与​​实验研究进行了比较。 Azyazov最近提出了I_2解离机制[J.化学物理130，104306（2009）]，以前用于模型计算与小信号增益[K. Waichman，J. Appl。物理106，063108（2009）]在此适用于激光输出功率的类似但更敏感的比较。分别针对低压和高压线圈研究了功率对碘流量和镜面透射率的依赖性。仅当计算中包括Azyazov建议的过程时，低压和高压COIL的计算功率和测量功率之间才能获得良好的一致性。这与增益情况不同，在增益情况下，对于高压COIL，计算值对假定的解离机理不敏感，尽管对于低压，测量结果仅通过应用Azyazov机理进行再现。我们认为，本工作的结果有力地支持了该机制在COIL操作建模中的应用。

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