Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polarization control of attosecond pulses using bi-chromatic
  elliptically polarized laser   We study the higher-harmonic generation (HHG) using elliptically polarized
two-color driving fields. The HHG via bi-chromatic counter-rotating laser
fields is a promising source of circularly polarized ultrashort XUV radiation
at the attosecond time scale. The ellipticity or the polarization of the
attosecond pulses can be tweaked by modifying the emitted harmonics'
ellipticity, which can be controlled by varying the driver fields. We propose a
simple setup to control the polarization of the driving fields, which
eventually changes the ellipticity of the attosecond pulses. A well-defined
scaling law for the ellipticity of the attosecond pulse as a function of the
rotation angle of the quarter-wave plate is also deduced by solving the
time-dependent Schrodinger equation (TDSE) in two dimensions. The scaling law
can further be explored to obtain the attosecond pulses of the desired degree
of polarization, ranging from linear to elliptical to circular polarization.

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The categories of this paper are: q-alg
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: cond-mat
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The categories of this paper are: funct-an
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: math