Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide

A. Ritucci, G. Tomassetti, A. Reale, L. Palladino, L. Reale, F. Flora, L. Mezi, S. Kukhlevsky, A. Faenov, T. Pikuz

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The characterization of the laser beam intensity distribution of a highly saturated 46.9-nm soft X-ray laser excited by capillary discharges is reported. The laser produces a total output energy of 300 μJ/pulse by amplification in plasma channels having lengths up to 0.45 m. A regime of laser amplification, which is almost free from the effect of the refraction defocusing, is experimentally determined. This regime produces a soft X-ray laser beam with an intense sub-milliradiant component. In the longer active medium the laser intensity distribution reaches the divergence of 0.6 mrad, which approaches the limit of diffraction. A comparison of the experimental results with the simulations performed with a ray-tracing code shows that the small divergence of the beam could be attributed to the effect of a weak index waveguiding of the laser beam through the long plasma channels.

Original languageEnglish
Pages (from-to)965-969
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume78
Issue number7-8
Publication statusPublished - May 2004

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plasma jets
waveguides
laser beams
lasers
divergence
x rays
defocusing
ray tracing
refraction
output
pulses
diffraction
simulation
energy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Ritucci, A., Tomassetti, G., Reale, A., Palladino, L., Reale, L., Flora, F., ... Pikuz, T. (2004). Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide. Applied Physics B: Lasers and Optics, 78(7-8), 965-969.

Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide. / Ritucci, A.; Tomassetti, G.; Reale, A.; Palladino, L.; Reale, L.; Flora, F.; Mezi, L.; Kukhlevsky, S.; Faenov, A.; Pikuz, T.

In: Applied Physics B: Lasers and Optics, Vol. 78, No. 7-8, 05.2004, p. 965-969.

Research output: Contribution to journalArticle

Ritucci, A, Tomassetti, G, Reale, A, Palladino, L, Reale, L, Flora, F, Mezi, L, Kukhlevsky, S, Faenov, A & Pikuz, T 2004, 'Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide', Applied Physics B: Lasers and Optics, vol. 78, no. 7-8, pp. 965-969.
Ritucci A, Tomassetti G, Reale A, Palladino L, Reale L, Flora F et al. Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide. Applied Physics B: Lasers and Optics. 2004 May;78(7-8):965-969.
Ritucci, A. ; Tomassetti, G. ; Reale, A. ; Palladino, L. ; Reale, L. ; Flora, F. ; Mezi, L. ; Kukhlevsky, S. ; Faenov, A. ; Pikuz, T. / Investigation of a highly saturated soft X-ray amplification in a capillary discharge plasma waveguide. In: Applied Physics B: Lasers and Optics. 2004 ; Vol. 78, No. 7-8. pp. 965-969.
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