A Multi-Layer Three Dimensional Superconducting Nanowire Photon Detector

Details A Multi-Layer Three Dimensional Superconducting Nanowire Photon Detector A Multi-Layer Three Dimensional Superconducting Nanowire Photon Detector

2012-02-07

arxiv.org/abs/1202.1518v1

Physics

Optics

12 pages, 6 figures

Scientific paper

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 significantly 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 modified to avoid the latching failure seen in extremely short superconducting nanowires. These advantages give a multi-layer superconducting number-resolving photon detector significant 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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