Abstract
As laser technology improved and LWFA became more popular, injection at density transitions with short transition scale-length was extensively studied in this context as well. First, in 2003 Tomassini et al. [7] published an analytic and numeric treatment of the problem, considering parameters typical for LWFA. The laser intensity is tuned such that the generated wake field is just below the threshold of wave breaking and self injection.
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Schmid, K. (2011). Next Steps for Optimizing the Accelerator. In: Laser Wakefield Electron Acceleration. Springer Theses. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19950-9_8
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