Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1772583 | High Energy Density Physics | 2012 | 5 Pages |
Abstract
We conducted ultrafast electron shadow imaging and deflection measurements of the optical laser-produced warm dense copper nano-foil. The results show that a significant amount of charge is ejected from the foil, forming electron clouds of hundreds of microns on both sides of the pumped foil. Furthermore, even for a thin 30-nm copper film, we found that the electron clouds develop asymmetry between the pumped front side and the rear side at the pump fluence of 4.5 J/cm2. The possible mechanism leading to this ejected charge asymmetry and its implication are discussed.
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Authors
Junjie Li, Jun Zhou, Tadashi Ogitsu, Yuan Ping, William D. Ware, Jianming Cao,