Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Bloch oscillations and subwavelength focusing in stacked fishnet
  metamaterials   In this letter, we introduce stacked fishnet metamaterial for steering light
in microwave region. We numerically demonstrate that optical Bloch oscillations
and a focus of as small as one sixth of a wavelength can be achieved. The
flexibility of varying geometrical parameters of the fishnet slabs provides an
efficient way for tuning its local effective media parameters and opens the
possibility for controlling light arbitrarily. The experiment verifies
subwavelength-sized light focusing effect by scanning magnetic field at the
surface of the sample directly.

22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom