3D simulations of surface harmonic generation with few-cycle laser pulses

被引：34
作者：
Geissler, M. [1 ]
Rykovanov, S.
Schreiber, J.
Meyer-ter-Vehn, J.
Tsakiris, G. D.
机构：
[1] Queens Univ Belfast, Ctr Plasma Phys, Dept Phys & Astron, Belfast BT7 1NN, Antrim, North Ireland
[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
[3] Moscow Engn Phys Inst, Moscow 115409, Russia
[4] Univ Munich, Dept Phys, D-85748 Garching, Germany
来源：
NEW JOURNAL OF PHYSICS | 2007年 / 9卷
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1088/1367-2630/9/7/218
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The mechanism of harmonic generation in the interaction of short laser pulses with solid targets holds promise for the production of intense attosecond pulses. Using the three-dimensional code ILLUMINATION, we have performed simulations pertaining to an experimentally realizable parameter range by high-power laser systems to become available in the near future. The emphasis of the investigation is on the coherent nature of the emission. We studied the influence of the plasma scale length on the harmonic efficiency, angular distribution and the focusability using a post processing scheme in which the far-field of the emission is calculated. It is found that the presence of an extended density profile reduces significantly the transverse coherence length of the emitted extreme ultraviolet (XUV) light. The different stages of the interaction for two particular cases can be followed with the help of movies.
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页数：13
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