Anomalous absorption of high-energy green laser light in high- z plasmas.


We observe strong anomalous absorption of green laser light in mm-scale high-temperature gold plasmas. Both the laser light absorption and the resulting increase of the electron temperature, which was measured independently with Thomson scattering, have been successfully modeled by including enhanced collisions due to heat-flux driven ion acoustic fluctuations. Calculations that include only inverse bremsstrahlung significantly underestimate the experimental laser absorption and the electron temperature.

Cite this paper

@article{Glenzer2002AnomalousAO, title={Anomalous absorption of high-energy green laser light in high- z plasmas.}, author={Siegfried H Glenzer and Wojciech Rozmus and Valery Yu Bychenkov and John D Moody and Jon Albritton and Roger L. Berger and A. V. Brantov and Mark Edward Foord and B. J. Macgowan and Robert K Kirkwood and H. A. Baldis and Elizabeth A. Williams}, journal={Physical review letters}, year={2002}, volume={88 23}, pages={235002} }