Collaborative Research: Scalable Kilo-Pixel Detector Modules Based on Polarization Sensitive Multi-Chroic Aluminum Manganese MKIDs

合作研究：基于偏振敏感多色铝锰 MKID 的可扩展千像素探测器模块

• 批准号: 1710624
• 负责人: Kent Irwin
• 金额: $ 33.18万
• 依托单位: Stanford University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-08-15 至 2020-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1710624&HistoricalAwards=false
• 关键词: Collaborative; Research; Scalable; Kilo; Pixel

The cosmic microwave background is an image of the Universe in its infancy. It spans the entire sky, but it is only visible to detectors that are sensitive to microwaves. Understanding this background with ever-greater precision led to our current understanding of cosmology. Further advances require more sensitive and precise detectors. Johnson and collaborators are developing a novel, potentially transformative technology called Microwave Kinetic Inductance Detectors (MKIDs). Such devices have a superconducting film that is especially sensitive to light. The devices are also sensitive to polarization, which enables them to make further scientific discoveries. MKIDs can be scaled to large arrays, which are needed for precise observations. Johnson and collaborators will create MKIDs using a new material -- manganese doped aluminum. They will build an improved prototype detector with more than ten times the number of pixels and demonstrate its sensitivity and scalability.This project will develop kilo-pixel arrays of polarization-sensitive Microwave Kinetic Inductance Detectors (MKIDs) that are sensitive to submillimeter radiation in the range 130-280 GHz. MKIDs operate by using superconducting resonators whose resonant frequency changes when incident photons break Cooper pairs in the device. Changes in resonance are monitored by a probe tone that drives the resonator. Each detector can have a unique resonance, which enables multiplexing many pixels onto a single output signal. Such multiplexing may enable very large arrays of detectors. Johnson and collaborators will develop a new MKID design using manganese doped aluminum, which has been used successfully in another detector technology. They will scale up their existing 23 element design to a 331 element module. They will test this prototype and demonstrate that multiplexing factors of ~1000 are achievable. Finally, they will expand the fabrication pipeline to enable production of more devices. This project will demonstrate the performance of these MKIDs to be comparable to competing technology and demonstrate its potential to advance beyond current technology, especially in terms of scalability for large arrays.

宇宙微波背景是宇宙处于婴儿期的图像。 它横跨整个天空，但只有对微波敏感的探测器才能看到。 更精确地理解这一背景导致了我们目前对宇宙学的理解。 进一步的进步需要更灵敏和更精确的探测器。 Johnson 和合作者正在开发一种新颖的、具有潜在变革性的技术，称为微波动感电感探测器 (MKID)。 此类设备具有对光特别敏感的超导薄膜。 这些设备还对偏振敏感，这使它们能够做出进一步的科学发现。 MKID 可以扩展到大型阵列，这是精确观察所需要的。 Johnson 和合作者将使用一种新材料——锰掺杂铝来创建 MKID。 他们将建造一个改进的原型探测器，像素数量增加十倍以上，并展示其灵敏度和可扩展性。该项目将开发千像素阵列的偏振敏感微波动感电感探测器（MKID），对 130-280 GHz 范围内的亚毫米辐射敏感。 MKID 通过使用超导谐振器进行操作，当入射光子破坏设备中的库珀对时，超导谐振器的谐振频率会发生变化。 谐振的变化由驱动谐振器的探测音监测。 每个探测器都可以具有独特的共振，从而能够将许多像素复用到单个输出信号上。 这种多路复用可以实现非常大的检测器阵列。 Johnson 和合作者将使用掺锰铝开发一种新的 MKID 设计，该设计已成功用于另一种探测器技术。 他们将把现有的 23 元件设计扩展到 331 元件模块。 他们将测试这个原型并证明可以实现约 1000 的复用因子。 最后，他们将扩大制造管道，以生产更多设备。 该项目将证明这些 MKID 的性能可与竞争技术相媲美，并展示其超越当前技术的潜力，特别是在大型阵列的可扩展性方面。