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Laser heating of solid matter by light-pressure-driven shocks at ultrarelativistic intensities

Abstract:

The heating of solid targets irradiated by 5×1020Wcm-2, 0.8 ps, 1.05μm wavelength laser light is studied by x-ray spectroscopy of the K-shell emission from thin layers of Ni, Mo, and V. A surface layer is heated to ∼5keV with an axial temperature gradient of 0.6μm scale length. Images of Ni Lyα show the hot region has ≤25μm diameter. These data are consistent with collisional particle-in-cell simulations using preformed plasma density profiles from hydrodynamic modeling which show that the &g...

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Authors


Hansen, SB More by this author
Freeman, RR More by this author
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Journal:
Physical Review Letters
Volume:
100
Issue:
16
Publication date:
2008-04-23
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:468d1d3f-d852-4f8a-979a-e8a17e1d5231
Source identifiers:
94504
Local pid:
pubs:94504
Language:
English

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