Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multifunctional Metamirrors Involving Simultaneous Linear-polarization
  Conversion and Focusing   Reducing a set of diverse bulk-optic-based optical components to a single
ultrathin and compact element that enables the same complex functionality has
become an emerging research area, propelling further integration and
miniaturization in photonics. In this work, we establish a versatile
metasurface platform based on gap-surface plasmon meta-atoms enabling efficient
linear-polarization conversion along with the complete phase control over
reflected fields. Capitalizing on the meta-atom design, multifunctional
metamirrors involving linear-polarization conversion and focusing are
experimentally demonstrated to generate various kinds of focused beams with
distinct phase distributions and wavefronts, reproducing thereby the combined
functionalities of conventional half-wave plates, lenses, and even spatial
light modulators. The proof-of-concept fabricated metamirrors exhibit excellent
capability of linear-polarization conversion and focusing within the wavelength
range from 800 to 950 nm under linearly-polarized excitation. The
multifunctional metamirrors design developed in this study opens new avenues in
the advanced research and applications targeting photonics integration of
diversified functionalities.

34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
18
The categories of this paper are: econ
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc