Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generation of J0-Bessel-Gauss Beam by an heterogeneous refractive index
  map   In this paper, we present the theoretical studies of a refractive index map
to implement a Gauss to J0-Bessel-Gauss convertor. We theoretically demonstrate
the viability of such device by solving the inverse electromagnetic problem.
The computed conversion efficiency is 90%. The theoretical results, obtained
from the beam conversion efficiency, self-regeneration, and propagation through
an opaque obstruction; demonstrate that a 2D graded index map of the refractive
index can be used to transform a Gauss beam into a J0-Bessel-Gauss beam. To the
best of our knowledge, this is the first demonstration of such beam
transformation by means of a 2D index-mapping which is fully integrable in
silicon photonics based planar lightwave circuits (PLC). The concept device is
significant for the eventual development of a new array of technologies, such
as micro optical tweezers, optical traps, beam reshaping and non-linear beam
diode lasers.

1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph