Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dielectric Square Resonator Investigated with Microwave Experiments   We present a detailed experimental study of the symmetry properties and the
momentum space representation of the field distributions of a dielectric square
resonator as well as the comparison with a semiclassical model. The experiments
have been performed with a flat ceramic microwave resonator. Both the resonance
spectra and the field distributions were measured. The momentum space
representations of the latter evidenced that the resonant states are each
related to a specific classical torus, leading to the regular structure of the
spectrum. Furthermore, they allow for a precise determination of the refractive
index. Measurements with different arrangements of the emitting and the
receiving antennas were performed and their influence on the symmetry
properties of the field distributions was investigated in detail, showing that
resonances with specific symmetries can be selected purposefully. In addition,
the length spectrum deduced from the measured resonance spectra and the trace
formula for the dielectric square resonator are discussed in the framework of
the semiclassical model.

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The categories of this paper are: chem-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: q-bio
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The categories of this paper are: math
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: ao-sci
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The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga