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INVESTIGATION OF NO DETECTION IN FLAMES BY THE USE OF POLARIZATION SPECTROSCOPY

机译：使用极化光谱法研究火焰中的无检测

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摘要

Various aspects of detection of NO molecules in a premixed H-2/N2O flame were investigated by the use of polarization spectroscopy. The signals were recorded in the A (2) Sigma(+) -X(2) Pi (0, 0) band of NO at 226 nm. Excitation spectra for circularly and linearly polarized pump beams are presented to illustrate the influence of the polarization state. The signal dependencies on the pump- and the probe-beam intensities were also investigated, as well as the influence of the setup geometry with respect to the pump-beam focusing and the crossing angle between the pump and the probe beams. A preliminary evaluation of temperature based on spectra recorded by the use of the Boltzmann plotting approach was performed. Finally, the possibilities of two-dimensional imaging of the NO molecules were demonstrated. (C) 1996 Optical Society of America [References: 16]
机译：通过使用偏振光谱研究了在预混合的H-2 / N2O火焰中检测NO分子的各个方面。信号记录在226 nm的NO的A（2）Sigma（+）-X（2）Pi（0，0）带中。给出了圆偏振和线偏振泵浦光束的激发光谱，以说明偏振态的影响。还研究了信号对泵浦和探测光束强度的依赖性，以及设置几何形状对泵浦光束聚焦和泵浦与探测光束之间的交叉角的影响。基于使用玻耳兹曼绘图法记录的光谱对温度进行了初步评估。最后，展示了NO分子二维成像的可能性。 （C）1996年美国眼镜学会[参考文献：16]

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