Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Light bullets by synthetic diffraction-dispersion matching   We put forward a new approach to generate stable, fully three-dimensional
light bullets, which is based on the matching of the intrinsic material
dispersion with a suitable effective diffraction. The matching is achieved in
adequate waveguide arrays whose refractive index is periodically modulated
along the direction of light propagation. We show that by using
non-conventional, out-of-phase longitudinal modulation of the refractive index
of neighboring channels, it is possible to tune the effective diffraction to
match the intrinsic material group velocity dispersion. Three-dimensional light
bullets are shown to form at reduced energy levels, in settings where the
dispersion would be far too weak to generate bullets in the absence of array.

23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol