Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An Optically-Programmable Absorbing Metasurface   A tunable metasurface absorber is presented in this work using an
optically-programmable capacitor as the tuning element. The tuning element does
not employ conventional semiconductor technologies to operate but rather a
bases its tuning by changing the optomechanical properties of its dielectric,
poly disperse red 1 acrylate (PDR1A). Doing so there are no conventional
semiconductor devices in the RF signal path. The metasurface operates at a
design frequency of 5.5 GHz and it achieves an optically-tuned bandwidth of 150
MHz, from 5.50 GHz to 5.65 GHz.

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The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat