High Resolution Molecular Spectroscopy Using Direct Discharge and Optically Pumped Molecular Lasers in the Far-Infrared

威斯康星大学拉克罗斯分校的Michael Jackson得到了实验物理化学计划的资助，该计划利用远红外(FIR)斯塔克光谱技术研究了一系列对称(氟甲烷和磷化氢)和不对称(二氧化硫、二氟乙烯、肼和甲醇)顶层分子的高分辨率吸收光谱。对光谱的分析将得到许多光谱跃迁的频率、分子结构参数和准确的电偶极子。此外，通过FIR区域的测量将给出双重态/反转分裂和电偶极矩的旋转态依赖关系。分子光谱学提供了一种远程检测和识别分子以及确定其基本内部性质的方法。这项研究将工作扩展到光谱的红外区域，在那里可以应用于星际空间、行星大气和激光科学中的分子探测。

Michael Jackson of the University of Wisconsin-La Crosse is supported by a grant from the Experimental Physical Chemistry Program to investigate the high resolution absorption spectroscopy of a series of symmetric (fluromethane and phosphine) and asymmetric (sulfur dioxide, difluoroethylene, hydrazine and methanol) top molecules using far ir (FIR) Stark spectroscopy. Analysis of the spectra will yield frequencies of the many spectroscopic transitions, molecular structural parameters and accurate electric dipoles. In addition, measurements through the FIR region will give the rotational state dependence of doublet/inversion splitting and of the electric dipole moments.Molecular spectroscopy provides a way of both detecting and identifying molecules remotely and of determining their fundamental internal properties. This study extends the work into the infrared region of the spectrum where there are applications to molecule detection in interstellar space, planetary atmospheres and to laser science.