Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Demonstration of cascaded modulator-chicane micro-bunching of a
  relativistic electron beam   We present results of an experiment showing the first successful
demonstration of a cascaded micro-bunching scheme. Two modulator-chicane
pre-bunchers arranged in series and a high power mid-IR laser seed are used to
modulate a 52 MeV electron beam into a train of sharp microbunches phase-locked
to the external drive laser. This configuration allows to increase the fraction
of electrons trapped in a strongly tapered inverse free electron laser (IFEL)
undulator to 96\%, with up to 78\% of the particles accelerated to the final
design energy yielding a significant improvement compared to the classical
single buncher scheme. These results represent a critical advance in
laser-based longitudinal phase space manipulations and find application both in
high gradient advanced acceleration as well as in high peak and average power
coherent radiation sources.

27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
18
The categories of this paper are: econ
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph