MRI: Acquisition of a Multifunctional Nanoprobe Microscope with a Tunable Ultrafast Laser Source for Interdisciplinary Research and Training

MRI：购买带有可调谐超快激光源的多功能纳米探针显微镜，用于跨学科研究和培训

• 批准号: 0923245
• 负责人: Robert Carpick
• 金额: $ 63万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2011-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0923245&HistoricalAwards=false
• 关键词: MRI; Acquisition; Multifunctional; Nanoprobe; Microscope

0923245CarpickU. of PennsylvaniaTechnical Summary: High impact nanomaterials research requires the innovative combination of normally separate techniques into multifunctional instruments that gather multiple forms of com-plementary data. In particular, nanoscale spectromicroscopy - the combination of micro- and nano-scale microscopy with powerful spectroscopy - is a lynchpin approach. We propose the acquisition of an atomic force microscope (AFM), near-field scanning optical microscope (NSOM) and confo-cal Raman microscope combined in a single, multifunctional system. The light source will be not only a standard laser but also a powerful turnkey tunable laser that enables a broad range of spec-troscopy and femtosecond measurements of dynamic nanoscale phenomena. It will function in seamless combination with the microscope for spectromicroscopy and also serves as a stand-alone source for complementary spectroscopy work to maximize its use and value. It will aid a broad range of research in nanoscale phenomena, materials, and devices involving 18 identified users. The crucial combination of microscopy and spectroscopy allows observed phenomena to be asso-ciated with specific nanoscale features and entities, such as connecting optical and structural prop-erties of semiconducting nanowires, studying optical phenomena in nanocircuits, probing the nanostructure of the cell wall, characterizing nanomechanical behavior, and studying polymer nanocomposites. It will be installed and managed in the Probe Innovation Facility of Penn?s Nano Bio Interface Center for widespread access. Vigorous associated outreach efforts include graduate and undergraduate curricular development, and substantial high school teacher and student en-gagement through established outreach programs which emphasize connecting with students from underrepresented groups and economically disadvantaged backgrounds in greater Philadelphia.Layman Summary: Nanotechnology is the study and development of new materials and devices that possess exciting and unprecedented properties thanks to having their structures controlled at the scale of a few atoms and molecules. It is extremely difficult to ?see?, ?feel? and ?listen? to at-oms, molecules, and nano-scale structures, yet we must do this to understand how they behave and make useful applications from them. Recently, researchers have developed ways to do this at the nanoscale with new techniques for microscopy (taking highly magnified images of the size and shape of objects) and spectroscopy (measuring the energy absorbed and emitted by objects). This funding will be used to purchase an instrument that combines both microscopy and spectroscopy in a multi-tasking system that includes a powerful, versatile laser. The laser illuminates the nanoscale objects being studied with light, where the color of the light can be selected from a wide palette. Simultaneously, the microscopy is used to determine where light is being absorbed, re-emitted, or scattered by the nanoscale objects being studied. As well, we can measure the size and shape of the objects, sense how stiff and strong they are, measure how sticky and frictional they are, and meas-ure how well they conduct electricity and heat. By making all of these measurements at once, or at least one right after the other in the same instrument, we will be able to quickly learn how the nanoscale objects behave. Researchers will use this equipment to study nanoscale materials and structures for applications including communicating information in new ways using light, develop-ing new ways to understand the cell and to treat and diagnose diseases, and creating new materials for strong, durable, lightweight structures and powerful, efficient electronic circuits. The system will be installed in Penn?s Nano Bio Interface Center, a leading national research center, for very open access. We will also use this instrument in several courses at Penn, and will engage high school teachers through programs in greater Philadelphia that connect with students from eco-nomically disadvantaged backgrounds and underrepresented groups in science and engineering.

0923245CarpickU.技术摘要：高影响力纳米材料研究需要将通常独立的技术创新地结合到多功能仪器中，以收集多种形式的补充数据。特别是，纳米级光谱显微镜--微米和纳米尺度显微镜与强大光谱学的结合--是一种关键方法。我们提出了一个原子力显微镜（AFM），近场扫描光学显微镜（NSOM）和共焦拉曼显微镜在一个单一的，多功能的系统相结合的收购。光源将不仅是一个标准的激光器，但也是一个强大的交钥匙可调谐激光器，使广泛的光谱和飞秒测量的动态纳米现象。它将与用于光谱显微镜的显微镜无缝结合，并作为补充光谱工作的独立来源，以最大限度地发挥其用途和价值。它将帮助涉及18个已确定用户的纳米级现象，材料和设备的广泛研究。显微镜和光谱学的关键组合允许观察到的现象与特定的纳米尺度特征和实体相关联，例如连接半导体纳米线的光学和结构特性，研究纳米电路中的光学现象，探测细胞壁的纳米结构，表征纳米力学行为，以及研究聚合物纳米复合材料。它将被安装和管理在宾夕法尼亚大学的探针创新设施？的纳米生物接口中心广泛访问。积极的相关推广工作包括研究生和本科课程开发，以及通过既定的推广计划，强调与大费城代表性不足的群体和经济弱势背景的学生联系的实质性高中教师和学生eng-gencion。Layman总结：纳米技术是研究和开发具有令人兴奋和前所未有的性能的新材料和设备，这要归功于其控制在几个原子和分子尺度上的结构。这是非常困难的？你看，?感觉？然后呢？听我说原子、分子和纳米尺度结构，但我们必须这样做，才能理解它们的行为，并从中做出有用的应用。最近，研究人员已经开发出在纳米尺度上实现这一目标的方法，包括显微镜（拍摄物体大小和形状的高度放大图像）和光谱学（测量物体吸收和发射的能量）的新技术。这笔资金将用于购买一种仪器，该仪器将显微镜和光谱学结合在一个多任务系统中，该系统包括一个功能强大的多功能激光器。激光器用光照亮正在研究的纳米级物体，其中光的颜色可以从广泛的调色板中选择。同时，显微镜用于确定被研究的纳米级物体吸收、重新发射或散射的光的位置。同样，我们可以测量物体的大小和形状，感觉它们的硬度和强度，测量它们的粘性和摩擦力，测量它们的导电和导热能力。通过同时进行所有这些测量，或者至少在同一仪器中一个接一个地进行测量，我们将能够快速了解纳米级物体的行为。研究人员将利用该设备研究纳米材料和结构的应用，包括利用光以新的方式传递信息，开发新的方法来理解细胞并治疗和诊断疾病，以及为坚固，耐用，轻质结构和强大，高效的电子电路创造新材料。该系统将安装在宾夕法尼亚州？的纳米生物界面中心，一个领先的国家研究中心，非常开放的访问。我们还将在宾夕法尼亚大学的几门课程中使用这种工具，并将通过大费城的项目吸引高中教师，这些项目将与来自经济弱势背景和科学和工程领域代表性不足的群体的学生联系起来。