Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Advantages of gated silicon single photon detectors   We present a gated silicon single photon detector based on a commercially
available avalanche photodiode. Our detector achieves a photon detection
efficiency of 45\pm5% at 808 nm with 2x 10^-6 dark count per ns at -30V of
excess bias and -30{\deg}C. We compare gated and free-running detectors and
show that this mode of operation has significant advantages in two
representative experimental scenarios: detecting a single photon either hidden
in faint continuous light or after a strong pulse. We also explore, at
different temperatures and incident light intensities, the "charge persistence"
effect, whereby a detector clicks some time after having been illuminated.

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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: nlin
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The categories of this paper are: nucl-ex
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The categories of this paper are: astro-ph
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
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The categories of this paper are: funct-an