Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detection and demultiplexing of cylindrical vector beams enabled by
  rotational Doppler effect   Cylindrical vector beams (CVBs) detection is of vital significance in kinds
of studies such as particle observation, mode-division multiplexing. Here we
realize a comprehensive detection of cylindrical vector beams based on the
rotational Doppler effect including analysis of topological charges,
amplitudes, and phases for mode bases. We construct a mode demultiplexing
scheme to obtain the amplitudes, phases in beating signal of collected
scattering light by Fourier transformation. The method resolves both absolute
values and signs of topological charges ofCVB simultaneously, which can not be
simply realized by existing polarization examination techniques. It may be of
big potential for related researches since an efficient, quantitative and
complete scheme to detect CVBs is verified starting from this work.

12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess