dorsal/arxiv
View SchemaNanostructures and enhanced absorption in intense laser interaction with matter: effect of laser prepulses
| Authors | P. P. Rajeev, S. Kahaly, S. Bose, P. Prem Kiran, P. Taneja, P. Ayyub, G. Ravindra Kumar |
|---|---|
| Categories | |
| ArXiv ID | physics/0506031 |
| URL | https://arxiv.org/abs/physics/0506031 |
Abstract
Hard x-ray emission (20 - 200 keV) from plasmas produced by intense laser pulses on nanoparticle coated targets is compared with that from optically polished targets. The yield enhancement offered by nanoparticles is studied under different prepulse conditions. It is observed that the enhancement reduces when the nanoparticle coated target is irradiated with a prepulse with intensity greater than 10^13 W/cm^2. When the prepulse intensity exceeds 10^14 W/cm^2, the enhancement vanishes completely. This is attributed to preplasma formation on nanoparticles their subsequent structural modifcation before the arrival of the main pulse. It is suggested that high-contrast ultrashort pulses are essential for nanoparticles to function as yield enhancers.
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"date_created": "2026-03-02T18:01:00.585000Z",
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"abstract": "Hard x-ray emission (20 - 200 keV) from plasmas produced by intense laser\npulses on nanoparticle coated targets is compared with that from optically\npolished targets. The yield enhancement offered by nanoparticles is studied\nunder different prepulse conditions. It is observed that the enhancement\nreduces when the nanoparticle coated target is irradiated with a prepulse with\nintensity greater than 10^13 W/cm^2. When the prepulse intensity exceeds 10^14\nW/cm^2, the enhancement vanishes completely. This is attributed to preplasma\nformation on nanoparticles their subsequent structural modifcation before the\narrival of the main pulse. It is suggested that high-contrast ultrashort pulses\nare essential for nanoparticles to function as yield enhancers.",
"arxiv_id": "physics/0506031",
"authors": [
"P. P. Rajeev",
"S. Kahaly",
"S. Bose",
"P. Prem Kiran",
"P. Taneja",
"P. Ayyub",
"G. Ravindra Kumar"
],
"categories": [
"physics.plasm-ph",
"physics.optics"
],
"title": "Nanostructures and enhanced absorption in intense laser interaction with matter: effect of laser prepulses",
"url": "https://arxiv.org/abs/physics/0506031"
},
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