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首页> 外文会议>Advanced photon counting techniques IV >Superconducting Transition-Edge Sensors Optimized for High-Efficiency Photon-Number Resolving Detectors
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Superconducting Transition-Edge Sensors Optimized for High-Efficiency Photon-Number Resolving Detectors

机译：专为高效光子数分辨检测器优化的超导过渡边缘传感器

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摘要

Superconducting photon detectors have emerged as a powerful new option for detecting single photons. System detection efficiency that incorporates the quantum efficiency of the device and system losses is one of the most important single-photon detector performance metrics for quantum information applications. Superconducting transition-edge sensors (TESs) are microcalorimeters that have the ability of distinguishing single photons with negligible dark counts. In addition, TESs are capable of directly measuring the photon number in a pulse of light. We have achieved near-unity system detection efficiency with TESs at particular wavelengths in the near-infrared by using multilayer structures that enhance the absorption of light into the active device material. We describe the design of the multilayer structure enabling high detection efficiency TESs including issues and requirements for obtaining detection efficiency values higher than 99 %. We describe the device fabrication and finally, show recent results of devices optimized for high detection efficiency using the multilayer structure.
机译：超导光子探测器已成为检测单个光子的强大新选择。结合了设备的量子效率和系统损耗的系统检测效率是量子信息应用最重要的单光子检测器性能指标之一。超导跃迁边缘传感器（TES）是一种微热量计，具有区分暗计数可忽略的单个光子的能力。此外，TES能够直接测量光脉冲中的光子数。通过使用多层结构来增强有源器件材料对光的吸收，我们在近红外的特定波长下使用TES实现了近统一系统的检测效率。我们描述了实现高检测效率TES的多层结构的设计，包括获得高于99％的检测效率值的问题和要求。我们描述了器件的制造过程，最后展示了使用多层结构为实现高检测效率而优化的器件的最新结果。

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