Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multipolar interference for non-reciprocal nonlinear generation   We show that nonlinear multipolar interference allows achieving not only
unidirectional, but also non-reciprocal nonlinear generation from a
nanoelement, with the direction of the nonlinearly produced light decoupled
from that of at least one or several of the excitation beams. Alternatively, it
may allow inhibiting the specified nonlinear response in a nanoelement or in
its periodic arrangement by reversing the direction of one of the pumps. The
described phenomena exploit the fact that, contrary to the linear response
case, nonlinear magneto-electric interference stems from a combination of
additive and multiplicative processes and includes an interference between
various terms within the electric and magnetic partial waves themselves. We
demonstrate the introduced concept numerically using an example of a plasmonic
dimer geometry with realistic material parameters.

27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph