May 26, 2016
Energy distribution of fast electrons accelerated by high intensity laser pulse depending on laser pulse duration
Journal of Physics: Conference Series
- Volume
- 717
- Number
- 1
- Language
- English
- Publishing type
- Research paper (international conference proceedings)
- DOI
- 10.1088/1742-6596/717/1/012102
- Publisher
- Institute of Physics Publishing
The dependence of high-energy electron generation on the pulse duration of a high intensity LFEX laser was experimentally investigated. The LFEX laser (λ = 1.054 and intensity = 2.5 - 3 x 1018 W/cm2) pulses were focused on a 1 mm3 gold cubic block after reducing the intensities of the foot pulse and pedestal by using a plasma mirror. The full width at half maximum (FWHM) duration of the intense laser pulse could be set to either 1.2 ps or 4 ps by temporally stacking four beams of the LFEX laser, for which the slope temperature of the high-energy electron distribution was 0.7 MeV and 1.4 MeV, respectively. The slope temperature increment cannot be explained without considering pulse duration effects on fast electron generation.
- Link information
- ID information
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- DOI : 10.1088/1742-6596/717/1/012102
- ISSN : 1742-6596
- ISSN : 1742-6588
- eISSN : 1742-6596
- SCOPUS ID : 84977279551