微光纤传输涡旋光操控金属微纳颗粒马达芯片的模拟及实验研究

项目名称： 微光纤传输涡旋光操控金属微纳颗粒马达芯片的模拟及实验研究

项目编号： No.61505056

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 张奚宁

作者单位： 华侨大学

项目金额： 20万元

中文摘要： 2012年，《Science》发表论文指出：具有特殊偏振态或相位性质的光束与金属微纳结构相互作用时，可带来新颖的光学现象，具有广阔的应用前景。此后的多项研究表明，涡旋光束（OV）以其复杂的强度及相位特征，被逐渐引入到表面等离激元（SPs）研究中，成为当前微纳光子学领域的前沿课题之一。本项目通过OV在微光纤中的传导与输出，近场激发金属微纳颗粒的SPs，实现等离激元微纳马达的组装及微光纤集成。研究涡旋光束在微光纤中的传输特性；计算涡旋光近场激发下，金属微纳颗粒间等离激元场及光学结合力的特性；搭建实验平台，用微光纤近场组装OV驱动的金属微纳颗粒马达，实现等离激元器件的芯片集成。本项目工作可以拓展OV的传输方式，为采用新思路组装等离激元器件并完成芯片集成进行理论探索和实验研究，具有重要的学术价值。本研究得到的微光纤集成、涡旋光束驱动的金属微纳颗粒马达，在光流控、光学传感等领域具有潜在的应用价值。

中文关键词： 金属微纳颗粒；涡旋光束；微光纤；等离激元器件

英文摘要： Highlighted by Science at 2012, novel optical phenomenon and its applications could be brought when optical beams with particular polarizations and phases meet the metallic micro/nano structures. Since then, several studies have been demonstrated that the optical vortex (OV), whose has complex intensity and phase properties, has been brought into the researches on surface plasmons (SPs) gradually, becoming one of the hottest tops in micor/nano photonics. This project proposes the plasmonic micro/nano motor based on metallic particles, which is driven by the OV beam in MFs. The propagation properties of the OV beam in a MFs is studied by numerical calculation method. The distributions of plasmonic field and optical binding force field are also simulated. Experimentally, the metallic micro/nano particle motor is controlled by the OV, which exports from MF and works as the driven light. With the help of MF, the chip-integration of this plasmonic motor can be realized in the microfluidic chip. This project can provide a new propagation method of OV and novel integration approach of plasmonic devices and components. The MF-integrated plasmonic motor may be used in a variety of applications such as optofluidics and optical sensing.

英文关键词： metal micro/nano particles ;optical vortex ;microfiber;plasmonic device