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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 20, Iss. 1 — Jan. 1, 2003
  • pp: 229–237

Generation of ultrashort hard-x-ray pulses with tabletop laser systems at a 2-kHz repetition rate

Yan Jiang, Taewoo Lee, and Christoph G. Rose-Petruck  »View Author Affiliations


JOSA B, Vol. 20, Issue 1, pp. 229-237 (2003)
http://dx.doi.org/10.1364/JOSAB.20.000229


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Abstract

We describe the generation of ultrafast x-ray pulses at a 2-kHz repetition rate with a new tabletop laser and x-ray generation system. The range of the emitted x-radiation wavelength is approximately a single ångstrom, from 0.3 to 0.1 nm. Specific emphasis is placed on the generation of broad continuum radiation for x-ray absorption spectroscopy. High-contrast laser pulses are desirable for generation of ultrashort pulses, which we achieve by dividing the laser system into a section for generation of high-contrast microjoule pulses followed by pulse cleaning and a section for chirped pulse amplification and pulse compression. Using this system, we generated x radiation from solid-copper and liquid-mercury targets in a helium atmosphere. From copper targets an average x-ray flux of 1013 photons/(s 4π sr keV) at 3 keV and 109 photons/(s 4π sr) above 5 keV photon energy was produced. X radiation from the mercury target did not exhibit emission lines within the spectral range 3–13 keV.

© 2003 Optical Society of America

OCIS Codes
(320.7090) Ultrafast optics : Ultrafast lasers
(340.7480) X-ray optics : X-rays, soft x-rays, extreme ultraviolet (EUV)
(350.5400) Other areas of optics : Plasmas

Citation
Yan Jiang, Taewoo Lee, and Christoph G. Rose-Petruck, "Generation of ultrashort hard-x-ray pulses with tabletop laser systems at a 2-kHz repetition rate," J. Opt. Soc. Am. B 20, 229-237 (2003)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-20-1-229

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