Two-pulse laser control of nuclear and electronic motion

Grønager, Michael; Henriksen, Niels Engholm

doi:10.1016/s0009-2614(97)00967-6

Cited by 11 publications

(15 citation statements)

References 23 publications

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“…Finally, some comments on the implications for the control scheme for selective bond breaking [3][4][5] described in the Introduction. In the computational studies presented previously, we studied symmetric triatomic ͑ABA͒ molecules with isotope substitutions.…”

Section: Discussionmentioning

confidence: 99%

“…These spatial effects imply some complications for the control scheme for selective bond breaking, [3][4][5] but also provide new possibilities for controlling the spatial distribution of photofragments, which is the main subject of the present paper. The orientational dependence of the IR-laser excitation is such that molecules oppositely oriented in space will oscillate phase shifted by .…”

Section: Introductionmentioning

confidence: 99%

“…The control scheme has been used in theoretical studies of selective bond breaking of triatomic molecules. [3][4][5] The WP dynamics of a molecule in a bound state can be driven by an IR-laser field if the molecule possesses a dipole moment with a nonzero derivative. 6 In the harmonic limit, an IR-laser field in resonance with the vϭ0˜vϭ1 transition ( IR ϭ 0 ) will force the WP to oscillate with the frequency of the field IR .…”

Section: Introductionmentioning

confidence: 99%

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Two-pulse laser control for selective photofragment orientation

Machholm

Henriksen

1999

The Journal of Chemical Physics

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The nuclear wave packet dynamics in the potential well of a bound molecule can be controlled by an intense infrared ͑IR͒-laser pulse. The phase of the nuclear wave packet motion is shown to depend on the phase of the laser field and the initial orientation of the molecule. We demonstrate, for diatomic heteronuclear molecules, that these spatial effects can be used to control the angular distribution of photofragments by selective dissociation of molecules with a given initial orientation from a sample of randomly oriented molecules.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Two-pulse laser control for selective photofragment orientation

Machholm

Henriksen

1999

The Journal of Chemical Physics

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“…The off-diagonal element in equation (42) contains the same matrix elements as equations (40) and (41). These matrix elements have to be evaluated once and then all three elements, D 3 , D 4 , and O 3,4 , can be formed as their corresponding products.…”

Section: Illustrationsmentioning

confidence: 99%

Time-resolved X-ray scattering by electronic wave packets: analytic solutions to the hydrogen atom

Simmermacher

Henriksen

Møller

2017

Phys. Chem. Chem. Phys.

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Modern pulsed X-ray sources permit time-dependent measurements of dynamical changes in atoms and molecules via non-resonant scattering. The planning, analysis, and interpretation of such experiments, however, require a firm and elaborated theoretical framework. This paper provides a detailed description of time-resolved X-ray scattering by non-stationary electronic wave packets in atomic systems. A consistent application of the Waller-Hartree approximation is discussed and different contributions to the total differential scattering signal are identified and interpreted. Moreover, it is demonstrated how the scattering signal of wave packets in the hydrogen atom can be expressed analytically. This permits simulations without numerical integration and establishes a benchmark for both efficiency and accuracy. Based on that, scattering patterns of an exemplary wave packet in the hydrogen atom are computed for different points in time. In doing so, distinct features of time-resolved X-ray scattering by non-stationary electronic wave packets are illustrated and accentuated in greater detail than it has been done before.

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“…A coherent superposition of two electronic states can be prepared by resonant optical excitation [17], thereby inducing electron motion. The phase of the field oscillation of the exciting radiation determines the phase of the electronic wave packet.…”

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confidence: 99%

Mapping attosecond electron wave packet motion

Niikura

Villeneuve

Corkum

2005

Springer Series in Chemical Physics

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Mapping attosecond electron wave packet motion Niikura, Hiromichi; Villeneuve, D. M.; Corkum, P. B.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=fr L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=12327083&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=12327083&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1103/PhysRevLett.94.083003Physical Review Letters, 94, 8, pp. 083003-1-083003-4, 2005-03- Attosecond pulses are produced when an intense infrared laser pulse induces a dipole interaction between a sublaser cycle recollision electron wave packet and the remaining coherently related boundstate population. By solving the time-dependent Schrödinger equation we show that, if the recollision electron is extracted from one or more electronic states that contribute to the bound-state wave packet, then the spectrum of the attosecond pulse is modulated depending on the relative motion of the continuum and bound wave packets. When the internal electron and recollision electron wave packet counterpropagate, the radiation intensity is lower. We show that we can fully characterize the attosecond boundstate wave packet dynamics. We demonstrate that electron motion from a two-level molecule with an energy difference of 14 eV, corresponding to a period of 290 asec, can be resolved. One of the aims of attosecond science is to observe single or multielectron dynamics [1][2][3][4][5]. Recently, two types of multielectron dynamics have been observed. One is the Auger ionization dynamics excited ...

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Two-pulse laser control of nuclear and electronic motion

Cited by 11 publications

References 23 publications

Two-pulse laser control for selective photofragment orientation

Two-pulse laser control for selective photofragment orientation

Time-resolved X-ray scattering by electronic wave packets: analytic solutions to the hydrogen atom

Mapping attosecond electron wave packet motion

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