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

Dina Rosenberg, Ran Damari, Shimshon Kallush, Sharly Fleischer*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)5128-5135
Number of pages8
JournalJournal of Physical Chemistry Letters
Volume8
Issue number20
DOIs
StatePublished - 19 Oct 2017

Funding

FundersFunder number
CMST COST
COST Action CM1405 MOLIMCM1405
Marie Curie CIG2797/11, 631628
National Research Center for Electrochemical Propulsion
S.F.
Wolfson Foundation
United States-Israel Binational Science Foundation2012021
Israel Science Foundation1065/14

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