Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Degeneracy of cross sections in scattering of light   We theoretically and numerically prove that under an electromagnetic plane
wave with linear polarization incident normally to cylindrical passive
scatterers, a single energy diagram can integrate absorption, scattering, and
extinction cross sections for arbitrary scattering systems, irrespective of
internal configuration, material parameters, and its sizes. For a system with
definite resonant orders, along the corresponding boundary of the energy
diagram, not only the magnitudes of scattering coefficients, but also its
phases, are required the same, corresponding to superabsorption or
superscattering. For systems composed by larger resonant orders, the domain of
the energy diagram can completely cover systems with lower one. Hence, systems
with different resonant orders can provide the same energy characteristics,
reflecting the energy degenerate property in light scattering. This degeneracy
may relax more degrees of freedom in functional designs, such as energy
harvesting, imaging, sensing devices. We demonstrate various systems based on
real materials to support this finding.

25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an