New Type of Infrared and Far Infrared Focal Plane Detector with Very Low NEP

具有极低NEP的新型红外和远红外焦平面探测器

• 批准号: 9261151
• 负责人: Andrew Hibbs
• 金额: $ 5万
• 依托单位: Quantum Magnetics, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-15 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9261151&HistoricalAwards=false
• 关键词: New; Type; Infrared; Far; Focal

A new type of infrared multipixel staring array is proposed based upon the recently observed phenomenon of photofluxonics. The sensor is based on a simple Josephson junction and is the magnetic analogue of a CCD photosensor; a novel device geometry allows the direct conversion of photons to fluxons. The quantized nature of the photon to fluxon conversion process affords a very low NDP. Experiments indicate that single quantum sensitivity in the infrared and far infrared range of the spectrum is possible. An array of such detectors would be an all thin film, monolithic, focal plane device with inherently low power consumption. It will be possible to implement the associated read out electronics on the same substrate. Phase I will demonstrate the photofluxonic effect in a Nb-Al203- Nb Josephson junction and, according to the results, optimize the preliminary design for an array of superconducting photosensitive pixels. Although well characterized low Tc superconductors will be used in Phase I, the photofluxonic effect has also been observed in high Tc superconductors and there seems to be no major impediment to implementing the technology with high Tc materials in Phase II.

提出了一种新型的红外多像元凝视阵列， 最近观察到的光通量现象。 的 传感器是基于一个简单的约瑟夫森结，是 CCD光电传感器的磁模拟;一种新的器件几何形状 允许光子直接转换为通量子。 的 光子-通量转换过程的量子化性质 提供非常低的NDP。 实验表明，单量子 在红外和远红外范围内的灵敏度 频谱是可能的。 这样的探测器阵列将是一个所有 薄膜单片焦平面器件 功耗. 将有可能实施 在同一衬底上的相关读出电子器件。 第一阶段将展示Nb-Al 2 O3-SiO2中的光通量效应。 Nb约瑟夫森结，并根据结果，优化 超导光敏二极管阵列的初步设计 像素 尽管低Tc超导体的特征很好， 在第一阶段使用，光通量效应也被 在高温超导体中观察到，似乎没有 实施高Tc技术的主要障碍 第二阶段的材料。