NER: Studies of subwavelength photonic force actuators

NER：亚波长光子力致动器的研究

• 批准号: 0708590
• 负责人: Bogdan Dragnea
• 金额: $ 10万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-15 至 2008-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0708590&HistoricalAwards=false
• 关键词: NER; Studies; subwavelength; photonic; force

CBET-0708590 Dragnea This proposal describes an integrated theoretical/experimental research plan for the prediction and characterization of the electromagnetic (trapping) force exerted on nanoparticles in the vicinity of subwavelength apertures in optically illuminated metal films. The investigators will use FTDT simulations to guide the experimental work. They intend to study particle trapping in well-defined (low pressure inert gas) environments, and then generalize to trapping in the presence of fluidic/interfacial forces to understand the scale at which interfacial forces exceed optical forces. This will potentially enable the design of novel nanostructures for the controlled optical manipulation of nanoparticles for applications such as particle sorting in microfluidic devices.

该提案描述了一个综合的理论/实验研究计划，用于预测和表征施加在光学照明金属薄膜中亚波长孔径附近的纳米粒子上的电磁（俘获）力。研究人员将使用FTDT模拟来指导实验工作。他们打算在明确定义的（低压惰性气体）环境中研究粒子捕获，然后推广到流体/界面力存在下的捕获，以了解界面力超过光学力的规模。这将有可能设计出新型纳米结构，用于控制纳米颗粒的光学操作，如微流体装置中的颗粒分选。