Generation of hard X-rays using an ultrafast fiber laser system
Optics Express, Vol. 15, Issue 21, pp. 13942-13948 (2007)
http://dx.doi.org/10.1364/OE.15.013942
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Abstract
We report the first hard X-ray source driven by a femtosecond fiber laser. The high energy fiber CPA system incorporated a 65μm LMA fiber amplifying stage which provided 300-fs recompressed pulses and diffraction limited beam quality with M2 < 1.07. A deformable mirror was used to optimize the wavefront and the spot size was focused down to 2.3 μm with an f/1.2 paraboloidal mirror. 50μJ was deposited on the nickel target with 2×1015-W/cm2 focal intensity and a distinctive Ni Kα -line (7.48 keV) emission was measured with 5×10-8 energy conversion efficiency.
© 2007 Optical Society of America
OCIS Codes
(140.3510) Lasers and laser optics : Lasers, fiber
(140.7090) Lasers and laser optics : Ultrafast lasers
(140.7240) Lasers and laser optics : UV, EUV, and X-ray lasers
ToC Category:
Lasers and Laser Optics
History
Original Manuscript: August 13, 2007
Revised Manuscript: September 13, 2007
Manuscript Accepted: September 22, 2007
Published: October 9, 2007
Citation
Kai-Hsiu Liao, Aghapi G. Mordovanakis, Bixue Hou, Guoqing Chang, Matthew Rever, Gerard A. Mourou, John Nees, and Almantas Galvanauskas, "Generation of hard X-rays using an ultrafast fiber laser system," Opt. Express 15, 13942-13948 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-21-13942
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References
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