Selective bond breakage within the HOD molecule using optimized femtosecond ultraviolet laser pulses

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Abstract

With the HOD molecule initially in its vibrational ground state, we theoretically analyze the laser-induced control of the OD/OH branching ratio D+OH H+OD in the first absorption band. In the weak-field limit, any form of UV-pulse shaping control leads to a branching ratio larger than similar to 2. We obtain in the strong-field limit (peak intensities similar to 10 TW/cm(2)) a branching ratio significantly less than 2. The optimized pulses operate by a pump-dump-pump mechanism, where the dumping to the electronic ground state creates nonstationary vibrational states in HOD.
Original languageEnglish
JournalPhysical Review A
Volume78
Issue number6
Pages (from-to)065402
ISSN2469-9926
DOIs
Publication statusPublished - 2008

Bibliographical note

Copyright 2008 American Physical Society

Keywords

  • perturbation theory
  • ground states
  • molecule-photon collisions
  • hydrogen compounds
  • vibrational states
  • photodissociation
  • bonds (chemical)

Cite this

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title = "Selective bond breakage within the HOD molecule using optimized femtosecond ultraviolet laser pulses",
abstract = "With the HOD molecule initially in its vibrational ground state, we theoretically analyze the laser-induced control of the OD/OH branching ratio D+OH H+OD in the first absorption band. In the weak-field limit, any form of UV-pulse shaping control leads to a branching ratio larger than similar to 2. We obtain in the strong-field limit (peak intensities similar to 10 TW/cm(2)) a branching ratio significantly less than 2. The optimized pulses operate by a pump-dump-pump mechanism, where the dumping to the electronic ground state creates nonstationary vibrational states in HOD.",
keywords = "perturbation theory, ground states, molecule-photon collisions, hydrogen compounds, vibrational states, photodissociation, bonds (chemical)",
author = "Tiwari, {Ashwani Kumar} and M{\o}ller, {Klaus Braagaard} and Henriksen, {Niels Engholm}",
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journal = "Physical Review A (Atomic, Molecular and Optical Physics)",
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Selective bond breakage within the HOD molecule using optimized femtosecond ultraviolet laser pulses. / Tiwari, Ashwani Kumar; Møller, Klaus Braagaard; Henriksen, Niels Engholm.

In: Physical Review A, Vol. 78, No. 6, 2008, p. 065402.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Selective bond breakage within the HOD molecule using optimized femtosecond ultraviolet laser pulses

AU - Tiwari, Ashwani Kumar

AU - Møller, Klaus Braagaard

AU - Henriksen, Niels Engholm

N1 - Copyright 2008 American Physical Society

PY - 2008

Y1 - 2008

N2 - With the HOD molecule initially in its vibrational ground state, we theoretically analyze the laser-induced control of the OD/OH branching ratio D+OH H+OD in the first absorption band. In the weak-field limit, any form of UV-pulse shaping control leads to a branching ratio larger than similar to 2. We obtain in the strong-field limit (peak intensities similar to 10 TW/cm(2)) a branching ratio significantly less than 2. The optimized pulses operate by a pump-dump-pump mechanism, where the dumping to the electronic ground state creates nonstationary vibrational states in HOD.

AB - With the HOD molecule initially in its vibrational ground state, we theoretically analyze the laser-induced control of the OD/OH branching ratio D+OH H+OD in the first absorption band. In the weak-field limit, any form of UV-pulse shaping control leads to a branching ratio larger than similar to 2. We obtain in the strong-field limit (peak intensities similar to 10 TW/cm(2)) a branching ratio significantly less than 2. The optimized pulses operate by a pump-dump-pump mechanism, where the dumping to the electronic ground state creates nonstationary vibrational states in HOD.

KW - perturbation theory

KW - ground states

KW - molecule-photon collisions

KW - hydrogen compounds

KW - vibrational states

KW - photodissociation

KW - bonds (chemical)

U2 - 10.1103/PhysRevA.78.065402

DO - 10.1103/PhysRevA.78.065402

M3 - Journal article

VL - 78

SP - 065402

JO - Physical Review A (Atomic, Molecular and Optical Physics)

JF - Physical Review A (Atomic, Molecular and Optical Physics)

SN - 2469-9926

IS - 6

ER -