Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: \beta-Ga2O3 NEMS Oscillator for Real-Time Middle Ultraviolet (MUV) Light
  Detection   We report on the first beta gallium oxide (\beta-Ga2O3) crystal feedback
oscillator built by employing a vibrating \beta-Ga2O3 nanoresonator as the
frequency reference for real-time middle ultraviolet (MUV) light detection. We
fabricate suspended \beta-Ga2O3 nanodevices through synthesis of \beta-Ga2O3
nanoflakes using low-pressure chemical vapor deposition (LPCVD), and dry
transfer of nanoflakes on microtrenches. Open-loop tests reveal a resonance of
the \beta-Ga2O3 device at ~30 MHz. A closed-loop oscillator is then realized by
using a combined optical-electrical feedback circuitry, to perform real-time
resonant sensing of MUV irradiation. The oscillator exposed to cyclic MUV
irradiation exhibits resonant frequency downshifts, with a measured
responsivity of $\mathscr{R}$ = -3.1 Hz/pW and a minimum detectable power of
\delta Pmin = 0.53 nW for MUV detection.

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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
27
The categories of this paper are: comp-gas
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The categories of this paper are: supr-con
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The categories of this paper are: quant-ph
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The categories of this paper are: eess
15
The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: q-alg
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The categories of this paper are: adap-org
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: math