Feasibility study of high harmonic generation from short wavelength lasers interacting with solid targets
The generation of the third and fourth harmonics from the interaction of a 1 ps, ultraviolet (UV), krypton fluoride (KrF) laser with a solid surface is investigated. The conversion efficiency is seen to increase linearly with Iλ2, with a transition from specular harmonic emission to emission into 2π...
| Main Authors: | , , , , , , , , , |
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| 格式: | Journal article |
| 語言: | English |
| 出版: |
1998
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| 總結: | The generation of the third and fourth harmonics from the interaction of a 1 ps, ultraviolet (UV), krypton fluoride (KrF) laser with a solid surface is investigated. The conversion efficiency is seen to increase linearly with Iλ2, with a transition from specular harmonic emission to emission into 2π steradians occurring between 1015 and 1016 W cm-2 μm2. The diffuse emission is strongly dependent on the incidence angle of the laser, with the peak in emission at around 30° being consistent with measurements for resonance absorption. Finally, the conversion efficiencies are found to be in agreement with particle-in-cell (PIC) simulations including appropriate density scalelengths. © 1998 Elsevier Science B.V. |
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