论文标题
在$ v_1+v_3 $ actylene中，重新评估自我压力扩展的矫正范围的依赖性。
Re-evaluation of ortho-para-dependence of self-pressure broadening in the $v_1+v_3$ band of acetylene
论文作者
论文摘要
据报道，R（8）对\ \ r（13）线的\ r（13）线的\ this Bove combination combination compination compination compination Band的光学频率梳子引用的测量报告接近1.52 $μ$ m。对数据的分析没有发现先前报道的证据[Iwakuni等。 \ textit {phys。 Rev. letts。} \ textbf {117}，143902（5）2016]在自宽线宽度中具有分子的核自旋状态的自宽线宽度中的系统交替。目前的工作提出了使用准确的线轮廓模型的需求，并仔细考虑了由于热频段和较低丰度同位素线而导致的弱背景吸收。使用二次速度依赖性的VOIGT轮廓模型充分拟合数据，从而忽略了小速度依赖性偏移。描述最可能和速度依赖性压力的参数，最可能的偏移和线强度，确定了每条线的强度。 Iwakuni等人的结果的详细建模。表明，由于依赖速度依赖的扩展期限，他们忽略了碰撞变窄，并在传输模式下记录和分析的强烈吸收数据可能是其结果的原因。
Optical frequency comb-referenced measurements of self pressure-broadened line profiles of the R(8) to R(13) lines in the \thisband combination band of acetylene near 1.52$μ$m are reported. The analysis of the data found no evidence for a previously reported [Iwakuni et al. \textit{Phys. Rev. Letts.} \textbf{117}, 143902(5) 2016] systematic alternation in self pressure-broadened line widths with the nuclear spin state of the molecule. The present work brought out the need for the use of an accurate line profile model and a careful accounting for weak background absorptions due to hot-band and lower abundance isotopomer lines. The data were adequately fit using the quadratic speed-dependent Voigt profile model, neglecting the small speed-dependent shift. Parameters describing the most probable and speed-dependent pressure-broadening, most probable shift, and the line strength were determined for each line. Detailed modeling of the results of Iwakuni et al. showed that their neglect of collisional narrowing due to the speed-dependent broadening term, combined with the strongly absorbing data recorded and analyzed in transmission mode were likely the reasons for their results.
