Effects of laser wavelength and density scalelength on absorption of ultrashort intense lasers on solid-density targets
Susumu Kato, Eiichi Takahashi, Tatsuya Aota, Yuji Matsumoto, Isao Okuda, Yoshiro Owadano
Abstract
Hot electron temperatures and electron energy spectra in the course of interaction between intense laser pulse and overdense plasmas are reexamined from a viewpoint of the difference in laser wavelength. The hot electron temperature measured by a particle-in-cell simulation is scaled by I rather than I λ2 at the interaction with overdense plasmas with fixed ions, where I and λ are the laser intensity and wavelength, respectively.
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