Help Privacy Policy Disclaimer
  Advanced SearchBrowse




Journal Article

Evidence for ultra-fast heating in intense-laser irradiated reduced-mass targets.


Yin,  Z.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available

Neumayer, P., Aurand, B., Costa Fraga, R. A., Ecker, B., Grisenti, R. E., Gumberidze, A., et al. (2012). Evidence for ultra-fast heating in intense-laser irradiated reduced-mass targets. Physics of plasmas, 19: 122708. doi:10.1063/1.4772773.

Cite as: http://hdl.handle.net/11858/00-001M-0000-000E-B923-D
We report on an experiment irradiating individual argon droplets of 20 lm diameter with laser pulses of several Joule energy at intensities of 1019 W/cm2. K-shell emission spectroscopy was employed to determine the hot electron energy fraction and the time-integrated charge-state distribution. Spectral fitting indicates that bulk temperatures up to 160 eV are reached. Modelling of the hot-electron relaxation and generation of K-shell emission with collisional hot-electron stopping only is incompatible with the experimental results, and the data suggest an additional ultra-fast (sub-ps) heating contribution. For example, including resistive heating in the modelling yields a much better agreement with the observed final bulk temperature and qualitatively reproduces the observed charge state distribution.