Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ray-wave correspondence in limacon-shaped semiconductor microcavities   The limacon-shaped semiconductor microcavity is a ray-chaotic cavity
sustaining low-loss modes with mostly unidirectional emission patterns.
Investigating these modes systematically, we show that the modes correspond to
ray description collectively, rather than individually. In addition, we present
experimental data on multimode lasing emission patterns that show high
unidirectionality and closely agree with the ray description. The origin of
this agreement is well explained by the collective correspondence mechanism.

21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat