Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimizing the Superlens: manipulating geometry to enhance the
  resolution   We analyze the performance of a planar lens based on realistic negative index
material in a generalized geometry. We demonstrate that the conventional
superlens design (where the lens is centered between the object and the image)
is not optimal from the resolution point-of-view, develop an analytical
expression for the resolution limit of a generalized lens, use it to find the
optimum lens configuration, and calculate the maximum absorption practical
nearfield superlenses may have. We demonstrate that in contrast to the
conventional superlens picture, planar imaging is typically accompanied by
excitation of surface waves at both interfaces of the lens.

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The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
5
The categories of this paper are: gr-qc