Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-directional light emission and emission reversal from micro cavity
  arrays   Optical microdisk cavities with certain asymmetric shapes are known to
possess unidirectional far-field emission properties. Here, we investigate
arrays of these dielectric microresonators with respect to their emission
properties resulting from the coherent behaviour of the coupled constituents.
This approach is inspired by electronic mesoscopic physics where the additional
interference effects are known to enhance the properties of the individual
system. As an example we study the linear arrangement of nominally identical
Lima\c{c}on-shaped cavities and find mostly an increase of the portion of
directional emitted light while its angular spread is largely diminished from
20 degrees for the single cavity to about 3 degrees for a linear array of 10
Lima\c{c}on resonators, in fair agreement with a simple array model. Moreover,
by varying the inter-cavity distance we observe windows of reversion of the
emission directionality and super-directionality that can be interesting for
applications. We introduce a generalized array factor model that takes the
coupling into account.

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The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin