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Phys. Rev. Lett. 75, 2324 - 2327 (1995)

Control of Bright Picosecond X-Ray Emission from Intense Subpicosecond Laser-Plasma Interactions

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J. Workman, A. Maksimchuk, X. Liu, U. Ellenberger, J. S. Coe, C.-Y. Chien, and D. Umstadter
Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109-2099

Received 23 February 1995

Using temporally and spectrally resolved diagnostics, we show that the pulse duration of laser-produced soft x rays emitted from solid targets can be controlled, permitting a reduction to as short as a few picoseconds. To enable this control, only a single parameter must be adjusted, namely, the intensity of the high-contrast ultrashort laser pulse (400 fs). These results are found to be in qualitative agreement with a simple model of radiation from a collisionally dominated atomic system.


©1995 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevLett.75.2324
DOI: 10.1103/PhysRevLett.75.2324
PACS: 42.60.Gd, 07.85.Fv, 32.30.Rj, 52.25.Nr

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