Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ultrathin Nanostructured Metals for Highly Transmissive Plasmonic
  Subtractive Color Filters   Plasmonic color filters employing a single optically-thick nanostructured
metal layer have recently generated considerable interest as an alternative to
colorant-based color filtering technologies, due to their reliability, ease of
fabrication, high color tunability. However, their relatively low transmission
efficiency (~30%) is an important challenge that needs to be addressed. The
present work reports, for the first time, a novel plasmonic subtractive color
filtering scheme that exploits the counter-intuitive phenomenon of
extraordinary low transmission (ELT) through an ultrathin nanostructured metal
film. This approach relies on a fundamentally different color filtering
mechanism than that of exsiting plasmonic additive color filters, and achieves
unusually high transmission efficiencies of 60~70% for simple architectures.
Furthermore, owing to short-range interactions of surface plasmon polaritons at
ELT resonances, our design offers high spatial resolution color filtering with
compact pixel size close to the optical diffraction limit (~{\lambda}/2),
creating solid applications ranging from imaging sensors to color displays.

36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin