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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 37, Iss. 5 — Mar. 1, 2012
  • pp: 884–886

Generation of hard x rays by femtosecond laser pulse interaction with solid targets in atmosphere

Alexey G. Zhidkov, Sergey A. Pikuz, Jr., Anatoly Ya. Faenov, Oleg V. Chefonov, Andrey V. Ovchinnikov, Mikhail B. Agranat, and Arie Zigler  »View Author Affiliations


Optics Letters, Vol. 37, Issue 5, pp. 884-886 (2012)
http://dx.doi.org/10.1364/OL.37.000884


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Abstract

X ray radiation as high as 50 keV, including Kα of Ba and Mo, have been observed from a solid target during the interaction of low energy 0.65mJ, 1 kHz 40 femtosecond laser pulses focused in air at atmospheric pressure. Energetic electrons generating such x rays are possibly produced when the field strength in laser pulse wake exceeds the runaway threshold in air. Two dimensional particle-in-cell simulations that include optical field ionization of air and elastic collisions support this mechanism.

© 2012 Optical Society of America

OCIS Codes
(110.7440) Imaging systems : X-ray imaging
(230.6080) Optical devices : Sources
(300.6560) Spectroscopy : Spectroscopy, x-ray
(350.5400) Other areas of optics : Plasmas
(020.2649) Atomic and molecular physics : Strong field laser physics

ToC Category:
Spectroscopy

History
Original Manuscript: September 9, 2011
Revised Manuscript: December 27, 2011
Manuscript Accepted: January 13, 2012
Published: February 24, 2012

Citation
Alexey G. Zhidkov, Sergey A. Pikuz, Anatoly Ya. Faenov, Oleg V. Chefonov, Andrey V. Ovchinnikov, Mikhail B. Agranat, and Arie Zigler, "Generation of hard x rays by femtosecond laser pulse interaction with solid targets in atmosphere," Opt. Lett. 37, 884-886 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-5-884


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References

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