论文标题
方向通过一致的Terahertz和近IR激发呼应
Orientation Echoes via Concerted Terahertz and Near-IR excitation
论文作者
论文摘要
提出并通过实验实现了一种新的和高效的方向回波光谱法。激发方案利用超短型Terahertz和近IIR脉冲都采用了协同的旋转激发，其全光脉冲通过分子取向引起的第二次谐波方法来实现[J.Phys.Chem.A 126，3732-3738（2022）]。该方法为气相分子的方向回波光谱提供了实用手段，并突出了与与谐振剂（Terahertz）和非谐振（NIR）光脉冲引起的相干旋转动力学的吸引人的基础物理学。
A new and efficient method for orientation echo spectroscopy is presented and realized experimentally. The excitation scheme utilizes concerted rotational excitations by both ultrashort terahertz and near-IR pulses and its all-optical detection is enabled by Molecular Orientation Induced Second Harmonic method [J.Phys.Chem.A 126, 3732-3738 (2022)]. The method provides practical means for orientation echo spectroscopy of gas phase molecules and highlights the intriguing underlying physics of coherent rotational dynamics induced by judiciously-orchestrated interactions with both resonant (terahertz) and nonresonant (NIR) light pulses.
