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Proceedings Paper

High-resolution x-ray spectromicroscopy observations of 1 MeV ions under far from relativistic laser beam channeling in N2O clusters
Author(s): A. Ya. Faenov; A. I. Magunov; T. A. Pikuz; I. Yu. Skobelev; K. Y. Kim; V. Kumarappan; H. M. Milchberg
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Paper Abstract

High-resolution X-Ray spectromicroscopy methods were used for investigations of fs laser interaction with N2O cluster media. Elongated (up to 8.5 mm) femtosecond laser self-channeling in N2O cluster media under sufficiently low laser intensity (0.5-4x1017 W/cm2) was observed. Results are revealing a strong macroscopic effect on laser beams owing to their interaction with a gas of clusters. This has occurred at moderate pulse intensities, so the effect is unrelated to either relativistic self-focusing or ponderomotive filamentation. Enough homogeneous multicharged ions plasma with bulk electron temperature around 100 eV was observed along the plasma channel. The spectral lines shapes of the H- and He-like Oxygen ions demonstrated the presence of strong "blue wings", which are caused by Doppler-shifted lines radiation from the essential fraction of ions (~10-2 - 10-3) with energies 0.1 - 1.5 MeV. The slope of Doppler-shifted lines radiation is good approximated by ~300 KeV ion temperatures.

Paper Details

Date Published: 3 February 2006
PDF: 11 pages
Proc. SPIE 5975, Topical Problems of Nonlinear Wave Physics, 597502 (3 February 2006); doi: 10.1117/12.675470
Show Author Affiliations
A. Ya. Faenov, Multicharged Ions Spectra Data Center (Russia)
A. I. Magunov, Multicharged Ions Spectra Data Center (Russia)
T. A. Pikuz, Multicharged Ions Spectra Data Center (Russia)
I. Yu. Skobelev, Multicharged Ions Spectra Data Center (Russia)
K. Y. Kim, Univ. of Maryland, College Park (United States)
V. Kumarappan, Univ. of Maryland, College Park (United States)
H. M. Milchberg, Univ. of Maryland, College Park (United States)


Published in SPIE Proceedings Vol. 5975:
Topical Problems of Nonlinear Wave Physics

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