Photodissociation of D 2 + induced by linearly chirped laser pulses

András Csehi, G. Halász, Lorenz S. Cederbaum, A. Vibók

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Recently, it has been revealed that so-called light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves even in diatomic molecules. Due to the strong nonadiabatic couplings, the existence of such LICIs has significant impact on the dynamical properties of a molecular system. In our former studies, the photodissociation process of the D 2 + molecule was studied initiating the nuclear dynamics both from individual vibrational levels and from the superposition of all the vibrational states produced by ionizing D2. In the present work, linearly chirped laser pulses were used for initiating the dissociation dynamics of D 2 +. In contrast to the constant frequency (transform limited) laser fields, the chirped pulses give rise to LICIs with a varying position according to the temporal frequency change. To demonstrate the impact of these LICIs on the dynamical properties of diatomics, the kinetic energy release spectra, the total dissociation probabilities, and the angular distributions of the D 2 + photofragments were calculated and discussed.

Original languageEnglish
Article number014305
JournalThe Journal of Chemical Physics
Volume143
Issue number1
DOIs
Publication statusPublished - Jul 7 2015

Fingerprint

Photodissociation
photodissociation
intersections
Laser pulses
pulses
lasers
dissociation
Molecules
Lasers
Angular distribution
diatomic molecules
vibrational states
Kinetic energy
angular distribution
kinetic energy
molecules

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Photodissociation of D 2 + induced by linearly chirped laser pulses. / Csehi, András; Halász, G.; Cederbaum, Lorenz S.; Vibók, A.

In: The Journal of Chemical Physics, Vol. 143, No. 1, 014305, 07.07.2015.

Research output: Contribution to journalArticle

@article{d55995ed2a894074aadb9f07f6200609,
title = "Photodissociation of D 2 + induced by linearly chirped laser pulses",
abstract = "Recently, it has been revealed that so-called light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves even in diatomic molecules. Due to the strong nonadiabatic couplings, the existence of such LICIs has significant impact on the dynamical properties of a molecular system. In our former studies, the photodissociation process of the D 2 + molecule was studied initiating the nuclear dynamics both from individual vibrational levels and from the superposition of all the vibrational states produced by ionizing D2. In the present work, linearly chirped laser pulses were used for initiating the dissociation dynamics of D 2 +. In contrast to the constant frequency (transform limited) laser fields, the chirped pulses give rise to LICIs with a varying position according to the temporal frequency change. To demonstrate the impact of these LICIs on the dynamical properties of diatomics, the kinetic energy release spectra, the total dissociation probabilities, and the angular distributions of the D 2 + photofragments were calculated and discussed.",
author = "Andr{\'a}s Csehi and G. Hal{\'a}sz and Cederbaum, {Lorenz S.} and A. Vib{\'o}k",
year = "2015",
month = "7",
day = "7",
doi = "10.1063/1.4923441",
language = "English",
volume = "143",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "1",

}

TY - JOUR

T1 - Photodissociation of D 2 + induced by linearly chirped laser pulses

AU - Csehi, András

AU - Halász, G.

AU - Cederbaum, Lorenz S.

AU - Vibók, A.

PY - 2015/7/7

Y1 - 2015/7/7

N2 - Recently, it has been revealed that so-called light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves even in diatomic molecules. Due to the strong nonadiabatic couplings, the existence of such LICIs has significant impact on the dynamical properties of a molecular system. In our former studies, the photodissociation process of the D 2 + molecule was studied initiating the nuclear dynamics both from individual vibrational levels and from the superposition of all the vibrational states produced by ionizing D2. In the present work, linearly chirped laser pulses were used for initiating the dissociation dynamics of D 2 +. In contrast to the constant frequency (transform limited) laser fields, the chirped pulses give rise to LICIs with a varying position according to the temporal frequency change. To demonstrate the impact of these LICIs on the dynamical properties of diatomics, the kinetic energy release spectra, the total dissociation probabilities, and the angular distributions of the D 2 + photofragments were calculated and discussed.

AB - Recently, it has been revealed that so-called light-induced conical intersections (LICIs) can be formed both by standing or by running laser waves even in diatomic molecules. Due to the strong nonadiabatic couplings, the existence of such LICIs has significant impact on the dynamical properties of a molecular system. In our former studies, the photodissociation process of the D 2 + molecule was studied initiating the nuclear dynamics both from individual vibrational levels and from the superposition of all the vibrational states produced by ionizing D2. In the present work, linearly chirped laser pulses were used for initiating the dissociation dynamics of D 2 +. In contrast to the constant frequency (transform limited) laser fields, the chirped pulses give rise to LICIs with a varying position according to the temporal frequency change. To demonstrate the impact of these LICIs on the dynamical properties of diatomics, the kinetic energy release spectra, the total dissociation probabilities, and the angular distributions of the D 2 + photofragments were calculated and discussed.

UR - http://www.scopus.com/inward/record.url?scp=84936860103&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84936860103&partnerID=8YFLogxK

U2 - 10.1063/1.4923441

DO - 10.1063/1.4923441

M3 - Article

VL - 143

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 1

M1 - 014305

ER -