dorsal/arxiv
View SchemaCollisionless energy absorption in the short-pulse intense laser-cluster interaction
| Authors | M. Kundu, D. Bauer |
|---|---|
| Categories | |
| ArXiv ID | physics/0607185 |
| URL | https://arxiv.org/abs/physics/0607185 |
| DOI | 10.1103/PhysRevA.74.063202 |
Abstract
In a previous Letter [Phys. Rev. Lett. 96, 123401 (2006)] we have shown by means of three-dimensional particle-in-cell simulations and a simple rigid-sphere model that nonlinear resonance absorption is the dominant collisionless absorption mechanism in the intense, short-pulse laser cluster interaction. In this paper we present a more detailed account of the matter. In particular we show that the absorption efficiency is almost independent of the laser polarization. In the rigid-sphere model, the absorbed energy increases by many orders of magnitude at a certain threshold laser intensity. The particle-in-cell results display maximum fractional absorption around the same intensity. We calculate the threshold intensity and show that it is underestimated by the common over-barrier ionization estimate.
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"abstract": "In a previous Letter [Phys. Rev. Lett. 96, 123401 (2006)] we have shown by\nmeans of three-dimensional particle-in-cell simulations and a simple\nrigid-sphere model that nonlinear resonance absorption is the dominant\ncollisionless absorption mechanism in the intense, short-pulse laser cluster\ninteraction. In this paper we present a more detailed account of the matter. In\nparticular we show that the absorption efficiency is almost independent of the\nlaser polarization. In the rigid-sphere model, the absorbed energy increases by\nmany orders of magnitude at a certain threshold laser intensity. The\nparticle-in-cell results display maximum fractional absorption around the same\nintensity. We calculate the threshold intensity and show that it is\nunderestimated by the common over-barrier ionization estimate.",
"arxiv_id": "physics/0607185",
"authors": [
"M. Kundu",
"D. Bauer"
],
"categories": [
"physics.atm-clus",
"physics.plasm-ph"
],
"doi": "10.1103/PhysRevA.74.063202",
"title": "Collisionless energy absorption in the short-pulse intense laser-cluster interaction",
"url": "https://arxiv.org/abs/physics/0607185"
},
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