X-RAYS FROM MICROSTRUCTURED TARGETS HEATED BY FEMTOSECOND LASERS

Authors
GORDON SP DONNELLY T SULLIVAN A HAMSTER H FALCONE RW
Citation
Sp. Gordon et al., X-RAYS FROM MICROSTRUCTURED TARGETS HEATED BY FEMTOSECOND LASERS, Optics letters, 19(7), 1994, pp. 484-486
Citations number
22
Categorie Soggetti
Optics
Journal title
Optics letters → ACNP
ISSN journal
01469592
Volume
19
Issue
7
Year of publication
1994
Pages
484 - 486
Database
ISI
SICI code
0146-9592(1994)19:7<484:XFMTHB>2.0.ZU;2-C
Abstract
We have demonstrated efficient conversion of ultrashort-pulse laser en ergy 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 a n improvement of a factor of 100 over flat targets. The K-shell emissi on spectrum of porous aluminum was composed primarily of heliumlike sp ectral lines.