Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spatial Fano resonance of a dielectric microsphere impinged by a Bessel
  beam   General concept of Fano resonance is considered so that to show the
possibility of this resonance in space. Using a recently found solution for a
Bessel wave beam impinging a dielectric sphere, we analyze the electromagnetic
fields near a microsphere with different optical size and permittivity values.
We theoretically reveal a spatial Fano resonance when a resonant mode of the
sphere interferes with {an amount of } non-resonant modes. This resonance
results in a giant jump of the electric field behind the sphere impinged by the
first-order Bessel beam. The local minimum of the electromagnetic field turns
out to be noticeably distanced from the rear edge of the microsphere. However,
this is a near-field effect and we prove it. We also show that this effect can
be utilized for engineering a submicron optical trap with unusual and useful
properties.

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The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
6
The categories of this paper are: astro-ph
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
23
The categories of this paper are: solv-int