Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced heat transfer with core-shell metal dielectric nanoparticles   Heat transfer from irradiated metallic nanoparticles is relevant to a broad
array of applications ranging from water desalination to photoacoustics. The
efficacy of such processes relies on the ability of these nanoparticles to
absorb the pulsed illuminating light and to quickly transfer energy to the
environment. Here we show that compared to homogeneous gold nanoparticles
having the same size, gold-silica core-shell nanoparticles enable heat
transfers to liquid water that are faster. We reach this conclusion by
considering both analytical and numerical calculations. The key factor
explaining enhanced heat transfer is the direct interfacial coupling between
metal electrons and silica phonons. We discuss how to obtain fast heating of
water in the vicinity of the particle and show that optimal conditions involve
nanoparticles with thin silica shells irradiated by ultrafast laser pulses. Our
findings should serve as guides for the optimization of thermoplasmonic
applications of core-shell nanoparticles.

25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph