8 May 2012 A multilayer three-dimensional superconducting nanowire photon detector
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Here we propose a new design paradigm for a superconducting nanowire single photon detector that uses a multi-layer architecture that places the electric leads beneath the nanowires. This allows for a very large number of detector elements, which we will call pixels in analogy to a conventional CCD camera, to be placed in close proximity. This leads to signicantly better photon number resolution than current single and multi-nanowire meanders, while maintaining similar detection areas. We discuss the reset time of the pixels and how the design can be modied to avoid the latching failure seen in extremely short superconducting nanowires. These advantages give a multi-layer superconducting number-resolving photon detector signicant advantages over the current design paradigm of long superconducting nanowire meanders. Such advantages are desirable in a wide array of photonics applications.
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A. Matthew Smith, A. Matthew Smith, "A multilayer three-dimensional superconducting nanowire photon detector", Proc. SPIE 8400, Quantum Information and Computation X, 84000L (8 May 2012); doi: 10.1117/12.930623; https://doi.org/10.1117/12.930623

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