Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Double layered transformation cavities: Crossover between local and
  global transformations   We study the resonant modes in double-layered transformation cavities
consisting of inner and outer layer boundaries where the mode intensity is
mainly located inside the inner layer. This is an intermediate design between a
transformation cavity and a cavity in a wholly transformed space of
transformation optics. We demonstrate the crossover between these two extreme
cases as the outer layer of the cavity varies and also explore the properties
of the resonant modes in the cavity. While the near-field patterns of the
resonant modes do not change as the outer layer becomes larger, the Q-factors
approach those of a cavity in the wholly transformed space of transformation
optics, and the far-field patterns are modified.

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The categories of this paper are: cond-mat
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph