Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Parametric Oscillation and amplification with gate controlled
  capacitor-within-capacitor   A Capacitor-within-Capacitor (CWC) is a nested electronic element that has
two components: the cell (e.g., the outer capacitor) and the gate (e.g., the
inner capacitor). The designations for the gate and cell may be interchanged.
Here, an analysis and experimentation on a diode-interfaced parametric
oscillations and amplification are described. By replacing the diode with a
junction, made of doped nano-graphene films, we demonstrated a new structure
whose doping may be electronically and chemically controlled.

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The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th