Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inverse scattering of dispersive stratified structures   We consider the inverse scattering problem of retrieving the structural
parameters of a stratified medium consisting of dispersive materials, given
knowledge of the complex reflection coefficient in a finite frequency range. It
is shown that the inverse scattering problem does not have a unique solution in
general. When the dispersion is sufficiently small, such that the time-domain
Fresnel reflections have durations less than the round-trip time in the layers,
the solution is unique and can be found by layer peeling. Numerical examples
with dispersive and lossy media are given, demonstrating the usefulness of the
method for e.g. THz technology.

8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th