MRI: Development of a Scanning-Probe-Assisted Confocal Microscope for Investigating Optical and Magnetic Properties and Phenomena

非技术描述：该仪器项目是关于开发一种扫描探针辅助荧光显微镜，用于在不同温度和超过微米和纳米长度范围内同时对材料进行热、机械、磁共振和光学测量。互补的成像技术集成到一个平台上，具有长期、稳定的温度控制，使纳米级研究能够探索具有新兴科技重要性的新材料和设备，如纳米级传感和信息处理。作为一个整体，这个项目汇集了一组在售态物理、光学和纳米工程方面具有互补专业知识的研究人员。此外，它还为学生和博士后研究人员提供跨学科教育，并能够与广泛的合作研究小组网络互动。这些合作伙伴关系不仅提供了一个广泛的传播平台，还允许主要研究人员推进正在进行的努力，从科学代表性不足的社区招收和培训学生。技术说明：该仪器的核心是一个闭合循环低温工作站，通过与设计用于最大限度减少低温泵振动的加热板接触，进行可变温度操作(4K至350K)。一组精密工作台允许用户控制激励激光光束、扫描探头和样品的相对位置。微型电磁铁被用来产生幅度和方向可变的磁场，而平板玻璃压印波导用作谐振微波和/或射频的源。该仪器的研究领域包括：(I)利用二维半导体研究单光子发射体；(Ii)研究钻石中的载流子自旋动力学；(Iii)开发纳米尺度的磁共振成像和光谱的新方案；(Iv)相变材料的表征和控制；(V)研究磁性纳米结构中的磁等离子体和自旋波效应；以及(Vi)了解拓扑光子超材料中的单光子动力学。

Non-Technical Description:This instrument project is on development of a scanning-probe-assisted fluorescence microscope for simultaneous thermal, mechanical, magnetic resonance, and optical measurements of materials at variable temperatures and over micrometer and nanometer length scales. The complementary imaging techniques, integrated into a single platform with long-time, stable temperature control, enable nanoscale research that explores new materials and devices of emerging scientific and technological importance such as nanoscale sensing and information processing. As a whole, this project brings together a team of researchers with complementary expertise in sold-state physics, optics, and nano-engineering. Further, it offers students and postdoctoral researchers interdisciplinary education and the ability to interact with a wide network of collaborating research groups. These partnerships not only provide a broad dissemination platform but also allow the principal investigators to advance ongoing efforts to recruit and train students from communities under-represented in science.Technical Description:At the heart of this instrument is a closed-cycle cryo-workstation for variable temperature operation (4 K to 350 K) via contact to a thermal plate designed to minimize vibrations from a cryo-pump. A set of precision stages allows users to control the relative positions of the excitation laser beam, the scanning probe, and the sample. A miniature electromagnet is used to create a magnetic field of variable amplitude and direction, whereas a flat, glass-imprinted wave-guide serves as the source of resonant microwave and/or radio-frequency. The areas of research benefiting from this instrument include (i) the investigation of single photon emitters using two-dimensional semiconductors, (ii) the study of carrier spin dynamics in diamond, (iii) the development of new protocols for magnetic resonance imaging and spectroscopy at the nanoscale, (iv) the characterization and control of phase-change materials, (v) the investigation of magneto-plasmonic and spin-wave effects in magnetic nanostructures, and (vi) the understanding of single-photon dynamics in topological photonic metamaterials.