Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dielectric spheres with maximum forward scattering and zero
  backscattering: A search for their material composition   Nanoparticles exhibiting zero backscattering but a large scattering cross
section in the forward direction should play a key role as light diffracting
elements in photonic devices like solar cells. Using Mie theory we address
lossless dielectric spheres that were recently reported to possess a
magnetodielectric response to the illuminating wave, and analyze their
scattering cross section together with their zero-backwards scattering
conditions. We show that there is an optimum particle refractive index (m =
2.47), which yields maximum forward scattering without backwards scattering of
light.

16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga