Molecular orientation echoes via concerted terahertz and near-IR excitations

被引：4
|
作者：
Damari, Ran [1 ,2 ]
Beer, Amit [1 ,2 ]
Rosenberg, Dina [1 ,2 ]
Fleischer, Sharly [1 ,2 ]
机构：
[1] Tel Aviv Univ, Raymond & Beverly Sackler Fac Exact Sci, Sch Chem, IL-6997801 Tel Aviv, Israel
[2] Tel Aviv Univ, Ctr Light Matter Interact, IL-6997801 Tel Aviv, Israel
来源：
OPTICS EXPRESS | 2022年 / 30卷 / 25期
基金：
以色列科学基金会;
关键词：
ROTATIONAL COHERENCE; SPECTROSCOPY; ALIGNMENT; FIELDS;
D O I：
10.1364/OE.474024
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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 the molecular orientation-induced second harmonic method [J. Phys. Chem. A 126 , 3732 (2022)]. This 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) fields.(c) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用
收藏
页码：44464 / 44471
页数：8
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