Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics

Chuan-Cun Shu, Esben Folger Thomas, Niels Engholm Henriksen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.
Original languageEnglish
JournalChemical Physics Letters
Volume683
Pages (from-to)234–239
ISSN0009-2614
DOIs
Publication statusPublished - 2017

Keywords

  • Vibrational excitation
  • Dynamic Stark effect
  • Pulse shaping

Cite this

@article{81cffd0d0b974610b87e68f563980e16,
title = "Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics",
abstract = "We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.",
keywords = "Vibrational excitation, Dynamic Stark effect, Pulse shaping",
author = "Chuan-Cun Shu and Thomas, {Esben Folger} and Henriksen, {Niels Engholm}",
year = "2017",
doi = "10.1016/j.cplett.2017.03.006",
language = "English",
volume = "683",
pages = "234–239",
journal = "Chemical Physics Letters",
issn = "0009-2614",
publisher = "Elsevier",

}

Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics. / Shu, Chuan-Cun; Thomas, Esben Folger; Henriksen, Niels Engholm.

In: Chemical Physics Letters, Vol. 683, 2017, p. 234–239.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Femtochemistry in the electronic ground state: Dynamic Stark control of vibrational dynamics

AU - Shu, Chuan-Cun

AU - Thomas, Esben Folger

AU - Henriksen, Niels Engholm

PY - 2017

Y1 - 2017

N2 - We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.

AB - We study the interplay of vibrational and rotational excitation in a diatomic molecule due to the non-resonant dynamic Stark effect. With a fixed peak intensity, optimal Gaussian pulse durations for maximizing vibrational or rotational transitions are obtained analytically and confirmed numerically for the H2 and Cl2 molecules. In general, pulse trains or more advanced pulse shaping techniques are required in order to obtain significant vibrational excitation. To that end, we demonstrate that a high degree of selectivity between vibrational and rotational excitation is possible with a suitably phase-modulated Gaussian pulse.

KW - Vibrational excitation

KW - Dynamic Stark effect

KW - Pulse shaping

U2 - 10.1016/j.cplett.2017.03.006

DO - 10.1016/j.cplett.2017.03.006

M3 - Journal article

VL - 683

SP - 234

EP - 239

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

ER -