Efficient electron injection into plasma waves using higher-order laser modes
نویسندگان
چکیده
منابع مشابه
Laser injection of ultrashort electron pulses into Wakefield plasma waves.
A novel laser-plasma-based source of relativistic electrons is described. It involves a combination of orthogonally directed laser beams, which are focused in a plasma. One beam excites a wakefield electron plasma wave. Another locally alters the trajectory of some of the electrons in such a way that they can be accelerated and trapped by the wave. With currently available table-top terawatt la...
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First time, self-consistent particle-in-cell simulations of electron injection into a plasma wake field by colliding laser pulses are presented. This method for injecting electrons in a laser wake field has been proposed recently by Esarey and coworkers [1]. An intense pump pulse generates a fast wake field. Forward going and backward going injection pulses collide at some distance behind the p...
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ALagrangian fluid model ~cold plasma, fixed ions! is developed for analyzing the coupling between electron plasma waves. This model shows that a small wave number electron plasma wave (v2 ,k2) will strongly affect a large wave number electron plasma wave (v1 ,k1), transferring its energy into daughter waves or sidebands at (v11nv2 ,k11nk2) in the lab frame. The accuracy of the model is checked ...
متن کاملSimulation of ultrashort electron pulse generation from optical injection into wake-field plasma waves.
A laser-plasma-based source of relativistic electrons is described in detail, and analyzed in two dimensions using theoretical and numeric techniques. Two laser beams are focused in a plasma, one exciting a wake-field electron plasma wave while another locally alters some electron trajectories in such a way that they can be trapped and accelerated by the wave. Previous analyses dealt only with ...
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One of the most important control problems is control under heavy uncertainty conditions. While there are a number of sophisticated methods like adaptation based on identi cation and observation, or absolute stability methods, the most obvious way to withstand the uncertainty is to keep some constraints by "brutal force". Indeed any strictly kept equality removes one "uncertainty dimension". Th...
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ژورنال
عنوان ژورنال: Physics of Plasmas
سال: 2006
ISSN: 1070-664X,1089-7674
DOI: 10.1063/1.2378627