Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photon echo in exciton-plasmon nanomaterials: a time-dependent signature
  of strong coupling   We investigate the dynamics of photon echo exhibited by exciton-plasmon
systems under strong coupling conditions. Using a self-consistent model based
on coupled Maxwell-Bloch equations we investigate femtosecond time dynamics of
ensembles of interacting molecules optically coupled to surface plasmon
supporting materials. It is shown that observed photon echoes under two pulse
pump-probe sequence are highly dependent on various material parameters such as
molecular concentration and periodicity. Simulations of photon echoes in
exciton-plasmon materials reveal a unique signature of the strong
exciton-plasmon coupling, namely a double-peak structure in spectra of recorded
echo signals. This phenomenon is shown to be related to hybrid states (upper
and lower polaritons) in exciton-plasmon systems under strong coupling
conditions. It is also demonstrated that the double-peak echo is highly
sensitive to mild deviations of the coupling from resonant conditions making it
a great tool for ultrafast probes.

16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
2
The categories of this paper are: math
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg