Rotational Echoes: Rephasing of Centrifugal Distortion in Laser-Induced Molecular Alignment

被引：33
|
作者：
Rosenberg, Dina [1 ,2 ]
Damari, Ran [1 ,2 ]
Kallush, Shimshon [3 ,4 ,5 ]
Fleischer, Sharly [1 ,2 ]
机构：
[1] Tel Aviv Univ, Sch Chem, Raymond & Beverly Sackler Fac Exact Sci, IL-6997801 Tel Aviv, Israel
[2] Tel Aviv Univ, Ctr Light Matter Interact, IL-6997801 Tel Aviv, Israel
[3] ORT Braude Coll, Dept Phys & Opt Engn, POB 78, IL-21982 Karmiel, Israel
[4] Hebrew Univ Jerusalem, Fritz Haber Res Ctr, IL-91904 Jerusalem, Israel
[5] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel
来源：
JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2017年 / 8卷 / 20期
基金：
以色列科学基金会;
关键词：
ELECTRONIC SPECTROSCOPY; COHERENCE SPECTROSCOPY; PHOTON-ECHOES; WAVE-PACKETS; CONSTANTS; RESONANCE; DYNAMICS; PULSES;
D O I：
10.1021/acs.jpclett.7b02215
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We study and demonstrate the rephasing property of the echo response in a multilevel rotational system of iodomethane via long time-resolved optical birefringence measurements. The strong centrifugal distortion of iodomethane is utilized as a dephasing mechanism imprinted on the echo signal and is shown to rephase throughout its evolution. The dependence of the echo signal amplitude on the driving pulses' intensities is theoretically and experimentally explored. The analogy to Hahn's spin echoes is discussed, and a quantum-mechanical version of Hahn's track runners is provided for the case of multilevel rotational system.
引用
收藏
页码：5128 / 5135
页数：8
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