X rays from microstructured targets heated by femtosecond lasers
Journal Article
·
· Optics Letters; (United States)
- Department of Physics, University of California, Berkeley, Berkeley, California 94720 (United States)
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 [ital K]-shell emission spectrum of porous aluminum was composed primarily of heliumlike spectral lines.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 7232707
- Journal Information:
- Optics Letters; (United States), Journal Name: Optics Letters; (United States) Vol. 19:7; ISSN 0146-9592; ISSN OPLEDP
- Country of Publication:
- United States
- Language:
- English
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