Single Photon Detection in the Near-and Mid-Infrared by Using Superconductive Nanowires

使用超导纳米线进行近红外和中红外单光子探测

• 批准号: 0823778
• 负责人: Karl Berggren
• 金额: $ 33万
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2011-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0823778&HistoricalAwards=false
• 关键词: Single; Photon; Detection; Near; Mid

ObjectiveWe will create a new generation of superconducting nanowire single-photon detectors (SNSPDs) with widths below 50 nm, thus improving dramatically on demonstrated detector efficiency at both near- and mid-infrared wavelengths. We will develop and test narrower wires by using improved nanofabrication and low-temperature characterization. We will simultaneously develop improved understanding of the superconductive nanowire device physics to enable further advances in nanowire-photodetector technology.Intellectual MeritSuperconducting nanowires are an interesting physical system for studying quantum mechanical, thermodynamic and electromagnetic interactions. Structures at the widths that will be explored in this work will provide new insights as the quantum mechanical wavefunction of the superconducting charge carriers is restricted from two, toward just one dimension. Additionally, this work will stress the limits of nanofabrication, requiring large-area structures to be developed with tens-of-nanometer widths and line-width uniformity of a few-nanometers. This work will also provide near- and mid-infrared single-photon detectors, and even photon-number-resolving detectors, with exquisite timing resolution that will advance research in quantum optics, remote sensing and astronomy.Broader ImpactsDevelopment of SNSPDs with increased efficiencies, both in the near- and mid-infrared, will provide sensors for applications ranging from astronomy to environmental monitoring. Also, this work will provide valuable educational opportunities in nanofabrication, nano-optics, and solid-state physics to graduate students and undergraduates in the classroom and in the laboratory. Finally, this project will create an opportunity for the general public to learn about one of the important applications of nanotechnology through a public lecture.

Objectivewe将创建新一代的超导纳米射线单光子检测器（SNSPDS），宽度低于50 nm，因此在近红外波长和中红外波长的检测器效率上显着提高。我们将通过使用改进的纳米化和低温表征来开发和测试较窄的电线。我们将同时提高对超导纳米线装置物理的了解，以实现纳米射线 - 探测器技术的进一步进步。Intellectualcopitsuperconductuctuctual Persuitsuperconducting纳米线是研究量子机械，热力学和电磁相互作用的有趣物理系统。在这项工作中将探索的宽度的结构将提供新的见解，因为超导荷载载流子的量子机械波函数限制在两个尺寸上，仅限于一个维度。 此外，这项工作将强调纳米化的限制，需要大面积结构以纳米宽度的宽度和几纳米级的线宽度均匀性开发。 This work will also provide near- and mid-infrared single-photon detectors, and even photon-number-resolving detectors, with exquisite timing resolution that will advance research in quantum optics, remote sensing and astronomy.Broader ImpactsDevelopment of SNSPDs with increased efficiencies, both in the near- and mid-infrared, will provide sensors for applications ranging from astronomy to environmental monitoring.此外，这项工作将为教室和实验室中的研究生和本科生提供纳米制作，纳米镜和固态物理学的宝贵教育机会。最后，该项目将为公众创造机会，通过公开演讲了解纳米技术的重要应用之一。