Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The REsonant Multi-Pulse Ionization injection   The production of high-quality electron bunches in Laser Wake Field
Acceleration relies on the possibility to inject ultra-low emittance bunches in
the plasma wave. In this paper we present a new bunch injection scheme in which
electrons extracted by ionization are trapped by a large-amplitude plasma wave
driven by a train of resonant ultrashort pulses. In the REsonant Multi-Pulse
Ionization (REMPI) injection scheme, the main portion of a single ultrashort
(e.g Ti:Sa) laser system pulse is temporally shaped as a sequence of resonant
sub-pulses, while a minor portion acts as an ionizing pulse. Simulations show
that high-quality electron bunches with normalized emittance as low as $0.08$
mm$\times$mrad and $0.65\%$ energy spread can be obtained with a single
present-day 100TW-class Ti:Sa laser system.

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The categories of this paper are: econ
9
The categories of this paper are: nlin
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The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: supr-con