Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation

Akira Terasaki; Tamotsu Kondow

doi:10.1016/j.cplett.2009.04.043

Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation

Akira Terasaki, Tamotsu Kondow

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Molecular-dynamics simulation is presented for an argon cluster, Ar₂₀₅₇, excited impulsively via instantaneous kinetic-energy deposition to constituent atoms in a hemispherical region. A critical energy is found for the fragmentation process of an unexcited volume of the cluster, above which fission is induced, whereas ejection of atoms predominates below this threshold energy. The fission process is shown to be accompanied by a shock wave propagating across the cluster. This simulation provides a qualitative model for the disintegration dynamics of a liquid micro-droplet excited by a mid-infrared laser pulse tuned to strong absorption [A. Terasaki, J. Phys. Chem. A 111 (2007) 7671].

Original language	English
Pages (from-to)	57-61
Number of pages	5
Journal	Chemical Physics Letters
Volume	474
Issue number	1-3
DOIs	https://doi.org/10.1016/j.cplett.2009.04.043
Publication status	Published - May 25 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/j.cplett.2009.04.043

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title = "Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation",

abstract = "Molecular-dynamics simulation is presented for an argon cluster, Ar2057, excited impulsively via instantaneous kinetic-energy deposition to constituent atoms in a hemispherical region. A critical energy is found for the fragmentation process of an unexcited volume of the cluster, above which fission is induced, whereas ejection of atoms predominates below this threshold energy. The fission process is shown to be accompanied by a shock wave propagating across the cluster. This simulation provides a qualitative model for the disintegration dynamics of a liquid micro-droplet excited by a mid-infrared laser pulse tuned to strong absorption [A. Terasaki, J. Phys. Chem. A 111 (2007) 7671].",

author = "Akira Terasaki and Tamotsu Kondow",

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T1 - Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation

AU - Terasaki, Akira

AU - Kondow, Tamotsu

PY - 2009/5/25

Y1 - 2009/5/25

N2 - Molecular-dynamics simulation is presented for an argon cluster, Ar2057, excited impulsively via instantaneous kinetic-energy deposition to constituent atoms in a hemispherical region. A critical energy is found for the fragmentation process of an unexcited volume of the cluster, above which fission is induced, whereas ejection of atoms predominates below this threshold energy. The fission process is shown to be accompanied by a shock wave propagating across the cluster. This simulation provides a qualitative model for the disintegration dynamics of a liquid micro-droplet excited by a mid-infrared laser pulse tuned to strong absorption [A. Terasaki, J. Phys. Chem. A 111 (2007) 7671].

AB - Molecular-dynamics simulation is presented for an argon cluster, Ar2057, excited impulsively via instantaneous kinetic-energy deposition to constituent atoms in a hemispherical region. A critical energy is found for the fragmentation process of an unexcited volume of the cluster, above which fission is induced, whereas ejection of atoms predominates below this threshold energy. The fission process is shown to be accompanied by a shock wave propagating across the cluster. This simulation provides a qualitative model for the disintegration dynamics of a liquid micro-droplet excited by a mid-infrared laser pulse tuned to strong absorption [A. Terasaki, J. Phys. Chem. A 111 (2007) 7671].

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EP - 61

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Dynamics of an argon cluster following impulsive excitation studied by molecular-dynamics simulation

Abstract

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