Article (Scientific journals)
Sub-femtosecond stark control of molecular photoexcitation with near single-cycle pulses
Mignolet, Benoît; Curchod, B. F. E.; Remacle, Françoise et al.
2019In Journal of Physical Chemistry Letters, 10 (4), p. 742-747
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Keywords :
Electric fields; Molecular dynamics; Quantum chemistry; Carrier-envelope phase; Electronic energy levels; Molecular dipole moment; Molecular photoexcitation; Molecular potential energies; Photoabsorptions; Resonance condition; Single-cycle pulse; Potential energy
Abstract :
[en] Electric fields can tailor molecular potential energy surfaces by interaction with the electronic state-dependent molecular dipole moment. Recent developments in optics have enabled the creation of ultrashort few-cycle optical pulses with precise control of the carrier envelope phase (CEP) that determines the offset of the maxima in the field and the pulse envelope. This opens news ways of controlling ultrafast molecular dynamics by exploiting the CEP. In this work, we show that the photoabsorption efficiency of oriented H 2 CSO (sulfine) can be controlled by tuning the CEP. We further show that this control emanates from a resonance condition related to Stark shifting of the electronic energy levels. © 2019 American Chemical Society.
Research center :
MolSys - Molecular Systems - ULiège
Disciplines :
Chemistry
Author, co-author :
Mignolet, Benoît ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique
Curchod, B. F. E.;  Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, United Kingdom
Remacle, Françoise  ;  Université de Liège - ULiège > Département de chimie (sciences) > Laboratoire de chimie physique théorique
Martinez, Todd
Language :
English
Title :
Sub-femtosecond stark control of molecular photoexcitation with near single-cycle pulses
Publication date :
2019
Journal title :
Journal of Physical Chemistry Letters
eISSN :
1948-7185
Publisher :
American Chemical Society
Volume :
10
Issue :
4
Pages :
742-747
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 20 March 2019

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