| Autor: |
Bolshakov, V V, Vorob, A A, Uryupina, D S, Ivanov, K A, Morshedian, Nader, Volkov, Roman V, Savel, Andrei B |
| Zdroj: |
Quantum Electronics; July 2009, Vol. 39 Issue: 7 p669-674, 6p |
| Abstrakt: |
We report a study of hot electron generation via the interaction of femtosecond laser pulses of subrelativistic intensity (1015 to 2x1017 W cm-2), having different linear polarisations and nanosecond-scale contrasts, with the surface of 'transparent' (quartz glass) and 'absorbing' (silicon) targets. As the incident pulse intensity increases from 1015 to 1017 W cm-2, the difference in hard X-ray yield and average hot electron energy between s- and p-polarised beams rapidly decreases. This effect can be understood in terms of relativistic electron acceleration mechanisms. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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