MRI: Development of an Apertureless Near-Field Scanning Optical and Magneto-Optical Kerr Effect Microscope for Nano-Science Applications

这一主要研究仪器奖支持康奈尔大学开发一种独特的光学显微镜，可以看到？由于远红外和深紫外光的反射、吸收和发射的对比度，导致了纳米级的特征。该显微镜利用纳米级的扫描探头实现了高空间分辨率，并在探头附近极大地放大了光场。它通过在真空环境中定位关键部件来实现高保真数据和所需的信噪比。在其开发阶段，各个研究小组通过对各种半导体和多功能样品进行成像来为其设计和测试做出贡献，本科生、K-12学生和教师也将参与其中。完成后，该仪器将向所有感兴趣的用户提供。*该重大研究仪器奖支持康奈尔大学为纳米科学应用开发基于真空的无孔近场扫描光学(ANSOM)和磁光克尔效应显微镜。该仪器继承了NSOM和真空平台的优点。使其有别于商用系统的其他关键特性包括其超宽带光学范围以及宽广的温度控制窗口。空气中的ANSOM已被广泛应用于研究纳米材料的电学和光学性质，但它受到水的污染和环境噪声的影响。在真空中，预计在电磁和磁力的检测和清洁环境方面将有几个数量级的改进。真空ANSOM将被开发并应用于半导体线/点发射间歇性、极化科学和激光、纳米尺度磁光克尔效应等领域。这种仪器的开发需要康奈尔大学多个研究小组之间的合作。将设计各种项目，以便在整个项目期间积极参与研究生、本科生、K12学生和教师。在开发阶段完成后，该仪器将通过一个共享设施平台提供，更多的用户可以从其独特的能力中受益。

This Major Research Instrumentation award supports Cornell University with the development of a unique optical microscope that can ?see? nanoscale features due to contrast in light reflection, absorption and emission in the far infrared as well as deep ultraviolet. This microscope achieves the high spatial resolution using a scanning probe of a nanometer scale and the greatly augmented optical field near this probe. It achieves high fidelity data with desired signal-noise ratio by locating the key components inside a vacuum environment. During the stage of its development, various research groups contributes to its design and testing by imaging a variety of semiconducting and multifunctional samples, which will also involve undergraduate students, K-12 students and teachers. Upon completion, the instrument will be made available to all interested users. ******This Major Research Instrumentation award supports Cornell University with the development of a vacuum based apertureless near-field scanning optical (ANSOM) and magneto-optical Kerr effect microscope for nano-science applications. The instrument inherits the advantage of both an NSOM and a vacuum platform. Other critical features that set it apart from commercially available systems include its super broadband optical range as well as a wide window of temperature control. ANSOM in air has been rather widely applied to investigate electronic and optical properties of nanoscale materials, however, it suffers from water contamination and noise from the ambient. In vacuum, a few orders of magnitude improvement in the detection of electrical and magnetic forces and a clean environment are expected. Vacuum ANSOM will be developed and applied to semiconductor wire/dot emission intermittency, polariton science and lasing, nano-scale magneto-optical Kerr effects and more. This instrument development necessitates collaboration among multiple research groups at Cornell University. Various projects will be designed to actively engage graduate students, undergraduate students, K12 students and teachers throughout the duration of the project. Upon completion of the development phase, the instrument will be made available through a shared facilities platform, where a broader range of users can benefit from its unique capabilities.