Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Near-Infrared 64-pixel Superconducting Nanowire Single Photon Detector
  Array with Integrated Multiplexed Readout   We demonstrate a 64-pixel free-space-coupled array of superconducting
nanowire single photon detectors optimized for high detection efficiency in the
near-infrared range. An integrated, readily scalable, multiplexed readout
scheme is employed to reduce the number of readout lines to 16. The cryogenic,
optical, and electronic packaging to read out the array, as well as
characterization measurements are discussed.

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The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom