SBIR Phase I: Improved Magneto-Optical Imaging Films Employing Surface Plasmon Resonance

这个小型企业创新研究(SBIR)第一阶段项目建议证明利用表面等离子体共振现象在磁光成像方面获得显著改进的可行性。许多领域的无损、非接触测试和评估(NDE)都需要改进的传感器和系统，包括安全、结构、医疗、研究和工业制造以及质量控制应用。磁性探测器和成像仪在这些应用中发挥着越来越重要的作用。在第一阶段，研究目标包括在空间和磁场分辨率以及成像带宽方面比现有方法有所改进。磁光材料的质量和传感器的设计将得到改进。通过将表面等离子体结构与具有高Verdet常数的材料相结合，将制造出1平方厘米的原型传感器。将测量起始传感器材料的组成、磁性和光学性质，并将从磁场和空间分辨率的角度评估原型传感器结构的磁成像能力。成像测试将对电流图案、磁性墨水、磁致伸缩结构复合材料和磁性医疗细胞标签颗粒等进行。商业应用包括磁性字符读取、用于安全的磁性代码读取、超导研究、自旋阀和磁性RAM的研究和制造、集成电路电流成像、使用磁性和磁致伸缩材料的结构复合应力成像、金属中的缺陷检测、癌症和其他细胞的生物医学标记和识别，以及MEMS致动器和器件的研究和测试。

This Small Business Innovation Research (SBIR) Phase I project proposes to demonstrate the feasibility of utilizing surface plasma resonance phenomena to obtain significant improvements in magneto-optical imaging. Improved sensors and systems are needed for non-destructive, non-contact testing and evaluation (NDE) in many areas, including security, structural, medical, research and industrial manufacturing and quality control applications. Magnetic detectors and imagers play a major and growing role in these applications. In Phase I, the research objectives include improvements in spatial and magnetic field resolutions and imaging bandwidth over existing methods. Magneto-optical materials quality and sensor design will be improved. Prototype sensors measuring 1cm2 will be fabricated by combining surface plasma structures with materials exhibiting high Verdet constants. The compositional, magnetic and optical properties of the starting sensor materials will be measured, and the magnetic imaging capabilities of the prototype sensor structures will be evaluated in terms of magnetic field and spatial resolution. Imaging tests will be made on electrical current patterns, magnetic inks, magnetostrictive structural composites and magnetic medical cell-tagging particles, among others. Commercial applications include magnetic character reading, magnetic code reading for security, superconductor research, spin valve and magnetic RAM research and manufacturing, integrated circuit electrical current imaging, structural composite stress imaging using magnetic and magnetostrictive materials, flaw detection in metals, biomedical tagging and identification of cancer and other cells, and research and testing of MEMs actuators and devices.