Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Carrier-envelope phase effects on the strong-field photoemission of
  electrons from metallic nanostructures   Sharp metallic nanotapers irradiated with few-cycle laser pulses are emerging
as a source of highly confined coherent electron wavepackets with attosecond
duration and strong directivity. The possibility to steer, control or switch
such electron wavepackets by light is expected to pave the way towards direct
visualization of nanoplasmonic field dynamics and real-time probing of electron
motion in solid state nanostructures. Such pulses can be generated by
strong-field induced tunneling and acceleration of electrons in the near-field
of sharp gold tapers within one half-cycle of the driving laser field. Here, we
show the effect of the carrier-envelope phase of the laser field on the
generation and motion of strong-field emitted electrons from such tips. This is
a step forward towards controlling the coherent electron motion in and around
metallic nanostructures on ultrashort length and time scales.

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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
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The categories of this paper are: stat
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys