Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Use of a spoof plasmon to optimize the coupling of infrared radiation to
  Josephson Junction fluxon oscillations   We show that Infrared radiation impinging onto a 1-d array of grooves drilled
in the superconductor electrode of a long overlap junction can improve matching
between fluxon oscillations at THz frequencies and a spoof plasmon of
comparable wavelength. This example proves that metamaterials can be very
helpful in integrating superconductive and subwavelength optical circuits with
optimized matching bridging the gap between infrared and microwave radiation.

26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn