| Autor: |
Bixue Hou, Kai-Hsiu Liao, Gerard Mourou, Almantas Galvanauskas, John Nees, Guoqing Chang, Aghapi Mordovanakis, Matthew Rever |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
Optics express. 15(21) |
| ISSN: |
1094-4087 |
| Popis: |
We report the first hard X-ray source driven by a femtosecond fiber laser. The high energy fiber CPA system incorporated a 65mum LMA fiber amplifying stage which provided 300-fs recompressed pulses and diffraction limited beam quality with M(2)1.07. A deformable mirror was used to optimize the wavefront and the spot size was focused down to 2.3 mum with an f/1.2 paraboloidal mirror. 50muJ was deposited on the nickel target with 2x10(15)-W/cm(2) focal intensity and a distinctive Ni K(alpha)-line (7.48 keV) emission was measured with 5x10(-8) energy conversion efficiency. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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