dorsal/arxiv
View SchemaTime dependent energy absorption of atomic clusters from an intense laser pulse
| Authors | Christian Siedschlag, Jan M Rost |
|---|---|
| Categories | |
| ArXiv ID | physics/0011070 |
| URL | https://arxiv.org/abs/physics/0011070 |
Abstract
For the energy absorption of atomic clusters as a function of the laser pulse duration we find a similar behavior as it has been observed for metallic clusters [K\"oller et al., Phys. Rev. Lett. {\bf 82}, 3783 (1999)]. In both situations there exists an optimum radius $R_{o}$ of the cluster for energy absorption. In the metallic case the existence of $R_{o}$ has been interpreted as a consequence of the collective oscillation of a delocalized electron cloud in resonance with the laser frequency. Here, we give evidence that in the atomic cluster the origin of $R_{o}$ is very different. Based on field assisted tunneling it can be related to the phenomenon of enhanced ionization as it occurs in small molecules. The dependence of $R_{o}$ on the laser frequency turns out to be the key quantity to distinguish the processes.
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"abstract": "For the energy absorption of atomic clusters as a function of the laser pulse\nduration we find a similar behavior as it has been observed for metallic\nclusters [K\\\"oller et al., Phys. Rev. Lett. {\\bf 82}, 3783 (1999)]. In both\nsituations there exists an optimum radius $R_{o}$ of the cluster for energy\nabsorption. In the metallic case the existence of $R_{o}$ has been interpreted\nas a consequence of the collective oscillation of a delocalized electron cloud\nin resonance with the laser frequency. Here, we give evidence that in the\natomic cluster the origin of $R_{o}$ is very different. Based on field assisted\ntunneling it can be related to the phenomenon of enhanced ionization as it\noccurs in small molecules. The dependence of $R_{o}$ on the laser frequency\nturns out to be the key quantity to distinguish the processes.",
"arxiv_id": "physics/0011070",
"authors": [
"Christian Siedschlag",
"Jan M Rost"
],
"categories": [
"physics.atm-clus"
],
"title": "Time dependent energy absorption of atomic clusters from an intense laser pulse",
"url": "https://arxiv.org/abs/physics/0011070"
},
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