dorsal/arxiv
View SchemaMetal nanoplasmas as bright sources of hard x-ray pulses
| Authors | P. P. Rajeev, P. Taneja, P. Ayyub, A. S. Sandhu, G. R. Kumar |
|---|---|
| Categories | |
| ArXiv ID | physics/0204027 |
| URL | https://arxiv.org/abs/physics/0204027 |
| DOI | 10.1103/PhysRevLett.90.115002 |
Abstract
We demonstrate a 13-fold increase in hard x-ray bremsstrahlung (10 - 200 keV) emitted by a copper plasma created by 100 fs, 806 nm pulses at $10^{14}-10^{15}$ Wcm$^{-2}$. This enhancement is achieved by roughening the target surface with copper nanoparticles of ~15 nm size. A simple model that invokes local field modifications by surface plasmon excitation and `lightning rod' effects explains the observed enhancement quantitatively and provides pointers to the design of structured surfaces for maximizing the emission.
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"date_created": "2026-03-02T18:00:39.049000Z",
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"abstract": "We demonstrate a 13-fold increase in hard x-ray bremsstrahlung (10 - 200 keV)\nemitted by a copper plasma created by 100 fs, 806 nm pulses at\n$10^{14}-10^{15}$ Wcm$^{-2}$. This enhancement is achieved by roughening the\ntarget surface with copper nanoparticles of ~15 nm size. A simple model that\ninvokes local field modifications by surface plasmon excitation and `lightning\nrod\u0027 effects explains the observed enhancement quantitatively and provides\npointers to the design of structured surfaces for maximizing the emission.",
"arxiv_id": "physics/0204027",
"authors": [
"P. P. Rajeev",
"P. Taneja",
"P. Ayyub",
"A. S. Sandhu",
"G. R. Kumar"
],
"categories": [
"physics.plasm-ph",
"physics.atom-ph"
],
"doi": "10.1103/PhysRevLett.90.115002",
"title": "Metal nanoplasmas as bright sources of hard x-ray pulses",
"url": "https://arxiv.org/abs/physics/0204027"
},
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