论文标题
控制旋转分辨的二维红外光谱与极化
Controlling rotationally-resolved two-dimensional infrared spectra with polarization
论文作者
论文摘要
红外频率梳的最新进展将使旋转分辨率(RR2DIR)的相干二维红外光谱记录。我们描述了如何通过极化来控制RR2DIR光谱,以增强或抑制光谱的某些特征,其新的极化条件是自由旋转分子独有的,而在凝聚相中不存在。使用此处描述的极化控制方法,RR2DIR光谱可以成为研究多原子分子复杂气体混合物的强大工具。
Recent advancements in infrared frequency combs will enable recording of coherent two-dimensional infrared spectra of gas-phase molecules with rotational resolution (RR2DIR). We describe how RR2DIR spectra can be controlled with polarization to enhance or suppress certain features of the spectrum, with new polarization conditions unique to freely rotating molecules and absent in the condensed-phase. With the polarization control methods described here, RR2DIR spectroscopy can be a powerful tool for studying complex gas mixtures of polyatomic molecules.