Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical coupling to Tamm plasmons   The conditions of critical coupling of light to Tamm plasmons are
investigated with comprehensive numerical simulations, highlighting the
parameters that maximise absorption of incident light in the metal layer. The
asymmetric response in reflection and absorption with respect to the direction
of incidence is discussed, the two cases yielding different optimal coupling
conditions. These findings are relevant for the design of optimised Tamm
structures, particularly in applications such as narrow-band thermal emitters,
field-enhanced spectroscopy and refractive-index sensing.

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The categories of this paper are: q-bio
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
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The categories of this paper are: nlin
29
The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: acc-phys
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The categories of this paper are: gr-qc
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org