权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Scan head for spectroscopic NSOM system

光谱 NSOM 系统扫描头

基本信息

批准号：
375925-2009
负责人：
Schriemer, Henry
金额：
$ 8.12万
依托单位：
University of Ottawa
依托单位国家：
加拿大
项目类别：
Research Tools and Instruments - Category 1 (<$150,000)
财政年份：
2008
资助国家：
加拿大
起止时间：
2008-01-01 至 2009-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=412266
关键词：
Scan head spectroscopic NSOM system

项目摘要

Nanotechnology begins to realize its promise when engineered complex systems are built on length scales less than one-thousandth the diameter of a human hair. A cost-effective means of seeing how such new structures behave, and verifying that they have been built as designed, uses an ultra-fine needle vibrating extremely close to the structure. This needle "reads" the local surface through both touch and sight - sensing minute changes in force, and transforming light otherwise "stuck" close to the surface into that which travels freely. The careful introduction of "pump" light into systems at just the right spot can cause the sample to give off light with a particular blend of colours, or to change the "feel" of other nanostructures. At the University of Ottawa, we have been constructing an advanced nanosystems characterization facility to understand and validate the performance of record high efficiency solar cells, miniature lasers, and exotic sensor arrays. The desired equipment completes the staged construction of a quarter-million-dollar facility and renders it operational. The requested scan head assembly and nanoaligner will be integrated with the previously purchased components: the scan head control system, confocal optical microscope and ultra-low-light-level-detection spectrometer. Optical pump light is acquired from an existing high-power, broadband tunable dye laser in a shared-use facility.

当设计复杂的系统建立在小于人类头发直径千分之一的长度尺度上时，纳米技术开始实现其前景。一种经济高效的方法来观察这些新结构的表现，并验证它们是否按设计建造，使用极接近结构的超细针振动。这种针头通过触觉和视觉感知的微小变化来读取局部表面的力，并将原本接近表面的光转化为自由传播的光。小心地在合适的位置将光注入系统，可以使样品发出具有特定混合颜色的光，或者改变其他纳米结构的“感觉”。在渥太华大学，我们一直在建造先进的纳米系统表征设备，以了解和验证创纪录的高效太阳能电池、微型激光器和奇异传感器阵列的性能。所需的设备完成了一个价值25万美元的设施的分阶段建设，并使其投入运营。所要求的扫描头组件和纳米准直器将与以前购买的组件集成在一起：扫描头控制系统、共聚焦光学显微镜和超微光探测光谱仪。光泵浦光是从共用设施中现有的高功率、宽带可调谐染料激光器中获取的。