X rays from microstructured targets heated by femtosecond lasers.
نویسندگان
چکیده
We have demonstrated efficient conversion of ultrashort-pulse laser energy to x rays with energies above 1 keV, using laser-produced plasmas generated on a variety of microstructured surfaces. Lithographically produced grating targets generated 0.1 mJ of kilo-electron-volt x rays, and porous gold and aluminum targets emitted 1 mJ. This represents an improvement of a factor of 100 over flat targets. The K-shell emission spectrum of porous aluminum was composed primarily of heliumlike spectral lines.
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ورودعنوان ژورنال:
- Optics letters
دوره 19 7 شماره
صفحات -
تاریخ انتشار 1994