Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonlinear optical response of a two-dimensional quantum dot
  supercrystal: Emerging multistability, periodic/aperiodic self-oscillations,
  and hyperchaos   We study theoretically the nonlinear optical response of a two-dimensional
semiconductor quantum dot supercrystal under a resonant continuous wave
excitation. A single quantum dot is modeled as a three-level ladder-like system
with the ground, one-exciton, and bi-exction states. We propose an exact linear
parametric method of solving the nonlinear steady-state problem. It is
demonstrate that the system may exhibit multistability, periodic and aperiodic
self-oscillations, and hyperchaotic behavior, depending on the system's
parameters and frequency of excitation. The effects originate from the retarded
dipole-dipole interaction of quantum dots. The latter provides a positive
feedback which, in combination with the nonlinearity of SQDs, leads to an
exotic nonlinear dynamics of the system indicated above. We discuss relevance
of the underlined effects for nanosized all-optical devices. In particular, a
quantum dot supercrystal may serve as a nanosized all-optical switch, a tunable
generator of trains of THz pulses (in self-oscillating regime), as well as a
noise generator (in chaotic regime) at the nanoscale. We show also that the
supercrystal can operate as a bistable mirror. All this suggests various
nanophotonic applications of such type of materials.

37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg