dorsal/arxiv
View SchemaSurface Oscillations in Overdense Plasmas Irradiated by Ultrashort Laser Pulses
| Authors | A. Macchi, F. Cornolti, F. Pegoraro, T. V. Liseikina, H. Ruhl, V. A. Vshivkov |
|---|---|
| Categories | |
| ArXiv ID | physics/0105019 |
| URL | https://arxiv.org/abs/physics/0105019 |
| DOI | 10.1103/PhysRevLett.87.205004 |
| Journal | Phys. Rev. Lett. 87, 205004 (2001) |
Abstract
The generation of electron surface oscillations in overdense plasmas irradiated at normal incidence by an intense laser pulse is investigated. Two-dimensional (2D) particle-in-cell simulations show a transition from a planar, electrostatic oscillation at $2\omega$, with $\omega$ the laser frequency, to a 2D electromagnetic oscillation at frequency $\omega$ and wavevector $k>\omega/c$. A new electron parametric instability, involving the decay of a 1D electrostatic oscillation into two surface waves, is introduced to explain the basic features of the 2D oscillations. This effect leads to the rippling of the plasma surface within a few laser cycles, and is likely to have a strong impact on laser interaction with solid targets.
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"abstract": "The generation of electron surface oscillations in overdense plasmas\nirradiated at normal incidence by an intense laser pulse is investigated.\nTwo-dimensional (2D) particle-in-cell simulations show a transition from a\nplanar, electrostatic oscillation at $2\\omega$, with $\\omega$ the laser\nfrequency, to a 2D electromagnetic oscillation at frequency $\\omega$ and\nwavevector $k\u003e\\omega/c$. A new electron parametric instability, involving the\ndecay of a 1D electrostatic oscillation into two surface waves, is introduced\nto explain the basic features of the 2D oscillations. This effect leads to the\nrippling of the plasma surface within a few laser cycles, and is likely to have\na strong impact on laser interaction with solid targets.",
"arxiv_id": "physics/0105019",
"authors": [
"A. Macchi",
"F. Cornolti",
"F. Pegoraro",
"T. V. Liseikina",
"H. Ruhl",
"V. A. Vshivkov"
],
"categories": [
"physics.plasm-ph"
],
"doi": "10.1103/PhysRevLett.87.205004",
"journal_ref": "Phys. Rev. Lett. 87, 205004 (2001)",
"title": "Surface Oscillations in Overdense Plasmas Irradiated by Ultrashort Laser Pulses",
"url": "https://arxiv.org/abs/physics/0105019"
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