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Science 1 February 1991:
Vol. 251. no. 4993, pp. 531 - 536
DOI: 10.1126/science.251.4993.531
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Articles

Ultrafast X-ray Pulses from Laser-Produced Plasmas

MARGARET M. MURNANE 1, HENRY C. KAPTEYN 1, MORDECAI D. ROSEN 2, and ROGER W. FALCONE 1

1 Department of Physics, University of California at Berkeley, CA 94720
2 Lawrence Livermore National Laboratory, Livermore, CA 94550

A high-temperature plasma is created when an intense laser pulse is focused onto the surface of a solid. An ultrafast pulse of x-ray radiation is emitted from such a plasma when the laser pulse length is less than a picosecond. A high-speed streak camera detector was used to determine the duration of these x-ray pulses, and computer simulations of the plasmas agree with the experimental results. Scaling laws predict that brighter and more efficient x-ray sources will be obtained by the use of more intense laser pulses. These sources can be used for time-resolved x-ray scattering studies and for the development of x-ray lasers.


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