Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Controlling Thermal Emission by Parity-symmetric Fano Resonance of
  Optical Absorbers in Metasurfaces   In this study, we designed a metasurface based on Al/SiN/Al nano-sandwich
optical absorbers. Parity-symmetric dark magnetic resonance modes,
anti-symmetric bright magnetic resonance modes, and surface lattice modes are
established simultaneously in such a meta-surface. By changing the structural
parameters, the wavelength of the dark mode can be tuned to overlap with the
lattice mode. Fano resonance is introduced by coupling between the dark and
lattice modes. Angular-resolved thermal emission experiments showed that the
thermal emission induced by Fano resonance exhibited a narrow wavelength
spectrum and directional radiation angle. Fano-type thermal emitters proposed
in this work can possibly be used as coherent infrared light sources in the
future.

30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
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
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
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The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex