Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modelling ultrafast non-equilibrium carrier dynamics and relaxation
  processes upon irradiation of hexagonal Silicon-Carbide with femtosecond
  laser pulses   We present a theoretical investigation of the yet unexplored dynamics of the
produced excited carriers upon irradiation of hexagonal Silicon Carbide
(6H-SiC) with femtosecond laser pulses. To describe the ultrafast behaviour of
laser induced out-of-equilibrium carriers, a real time simulation based on
Density Functional Theory (DFT) methodology is used to compute both the hot
carrier dynamics and transient change of the optical properties. A
Two-Temperature model (TTM) is also employed to derive the relaxation processes
for laser pulses of wavelength 401 nm, duration 50 fs at normal incidence
irradiation which indicate that surface damage on the material occurs for
fluence ~1.88 Jcm-2. This approach of linking, for the first time, real time
calculations, transient optical properties and TTM modelling, has strong
implications for understanding both the ultrafast dynamics and relaxation
processes and providing a precise investigation of the impact of hot carrier
population in surface damage mechanisms in solids.

37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th