【摘要】 考虑了速度调制光谱实验中气体分子碰撞所引起的压力增宽对谱线线型的影响 ,对已有的速度调制光谱的理论进行了修正 ,并用新的理论对所得到的实验谱线进行了精密仿真 .结果表明 ,修正后的理论与实验结果完全符合 ,在研究分子离子的碰撞动力学以及进行谱线的高精细分辨等方面将具有广阔的应用前景更多还原

【Abstract】 The effect of pressure broadening on the line shape of velocity modulation laser spectroscopy is considered here, which is induced by the collisions of the gas molecules. The old theory on velocity modulation spectroscopy is revised and new theory is setup to get the precise simulation of our experimental spectrum. It has been shown that the new theory agrees with experiments perfectly, and has potential applications in the investigation of the dynamics of the collisions of molecular ions and obtaining more precisely resolved spectrum.更多还原