报告摘要Abstract：

微米尺度光纤的巨大成就造就了互联网的高度发达和世界的迅速“变小”。微米光纤基础理论也因此获得了2009年诺贝尔物理学奖。如今，纳米尺度光纤（亦即纳米线）成为国际前沿研究热点，Nature 杂志将纳米线列为物理学五大前沿研究热点的第二位。目前，基于有机和无机等各种材料的纳米线及其纳米光子器件组装的研究非常热门。人们已用光刻技术制作出基于金属材料的表面等离子体纳米波导、基于平面介质材料的纳米线波导、光子晶体波导等。通过自组装方法制作出基于半导体等材料的纳米结构。聚合物纳米线由于具有良好的机械性能，尤其是其弹性和柔韧性很好，而且可以通过化学设计改变其材料的特性，是构筑超紧凑光子学器件和微型化集成光路的首选之一。聚合物纳米线可以通过化学合成法、激光烧蚀法、静电纺丝法、微纳吸管法、近场探针拉制法、尖端阵列法等制作。我们的工作是将用于地毯和服装的新型PTT聚合物材料用于纳米光子学研究中，通过加热使其成熔融态后，经简单、快速、价格低廉的直接拉制方法，制作出直径小至60纳米、长度达50厘米、表面光滑、直径均匀的纳米线。借助显微操作和扭缠技术，组装成功基于该纳米线的纳米鸟巢、纳米镊子、纳米剪刀、纳米环、纳米耦合器、纳米分束器以及纳米传感器件等纳米光子学器件。

The development of nanotechnology in photonics offers significant scientific and technological potentials. It fosters the substantial efforts for exploring novel photonic materials, developing easy device fabrication techniques, reducing the size of photonic devices, improving device integration density, and fabricating low-cost nanodevices. Since nanometer-scale photonic wires are highly desirable for applications in high density and miniaturized photonic integrated circuits, so subwavelength-diameter wires were fabricated in silica fiber, bulk glass, compound-glass fiber, etc. Meanwhile, miniaturization of photonic devices is being intensively focused because they drive great developments in the fields of optical communications, biophotonics, engineered structures, and photonic integrations. Poly(trimethylene terephthalate) (PTT) is a relatively novel polymer material which was extracted from petroleum or refined from corn. In this talk, good transparency of PTT from visible lights to near-infrared and its application for the first time in nanophotonics will be introduced. Subsequently, flexible and elastic nanowires with diameters down to 60 nm and lengths up to 500 mm, which were drawn by a one-step drawing process from the PTT melt, will be presented followed by a number of devices (nanosplitters, nanocouplers, nanorings, nanoresonators, nanotweezer, nanoscissor, nanoscrewdriver, nanobird’s nest, nanosensor, etc.) and nanophotonic integration, which were assembled by the PTT nanowires.

报告人简介Introduction to the speaker：

李宝军教授先后毕业于西北师范大学（本科），兰州大学（硕士），西安交通大学（博士）；之后工作于复旦大学（博士后），新加坡国立大学与美国麻省理工学院（Alliance）（博士后），新加坡材料与工程研究院（IMRE）（Research Fellow），中山大学（教授、博士生导师），英国牛津大学（高级研究学者）；目前任中山大学长江学者特聘教授。主要从事光电子器件及集成、纳米光子学及技术、能源光子学及应用等研究。近年在 Nano Letters、ACS Nano、Optics Letters、Optics Express、Applied Physics Letters 等国际学术刊物上发表第一作者或通讯作者 SCI 论文50多篇。应邀在国际学术会议上做 Keynote Presentation、Plenary Talk、Invited Talk等20多次。应邀作为 Editor 组织美国、日本、法国、西班牙、意大利、加拿大、新加坡等国家的科研人员为英国剑桥 Woodhead 出版社撰写英文专著一部，作为 Author 为奥地利 In-Tech 出版社和美国 Nova Science 出版社撰写英文专著各一章。部分工作被德国科技报、德国法兰克福报、Nanotechnology News、Nature China等做了介绍，被 Chem.Soc.Rev. / Rep.Prog.Phys. / Nano Lett. / Adv.Mater. / J.Am.Chem.Soc.等国际学术刊物论文或Review paper引用，被写入国外 Springer、Elsevier、Woodhead、CRC Press、InTech、Nova Science 等出版社以及国内上海科学技术出版社出版的专业书籍中。近年先后获国家杰出青年科学基金，国务院颁发的政府特殊津贴；入选中山大学“百人计划”，教育部新世纪优秀人才支持计划，广东省高等学校“千百十工程”国家级培养对象，教育部“长江学者”特聘教授等。

Baojun Li graduated from the Northwest Normal University, Lanzhou, China, in 1987 with a B.Sc degree in physics, received the M.Sc degree in semiconductor physics and semiconductor device physics from the Lanzhou University, China, in 1993, and the Ph.D degree in microelectronics from the Xian Jiaotong University, China, in 1998. From July 1998 to February 2000, he was with the Fudan University, Shanghai, China, where he was a Postdoctoral Fellow in the Department of Physics, Surface Physics National Key Laboratory. March 2000 to February 2002, he was with the Advanced Materials for Micro- & Nano- Systems, the Singapore-MIT Alliance (SMA) and Center for Optoelectronics, Department of Electrical and Computer Engineering, the National University of Singapore, Singapore, first as a Postdoctoral Fellow and then was a Research Fellow. April to October 2002, he was with the Opto- & Electronic Systems Cluster, the Institute of Materials Research and Engineering (IMRE), Singapore, where he was a Research Fellow. October 2002 to May 2009, he was with the Sun Yat-Sen University, Guangzhou, China, as a full Professor in the School of Physics and Engineering and the State Key Laboratory of Optoelectronic Materials and Technologies and acting as a director for the Research Laboratory for Optoelectronic Integration and Lasers. May to November 2009, he was with the University of Oxford, UK, as an Academic Visitor in the Department of Physics and Clarendon Laboratory. From December 2009 to now, he is with the Sun Yat-Sen University, as a Chang Jiang Scholar Professor in the School of Physics and Engineering and the State Key Laboratory of Optoelectronic Materials and Technologies.

He has published more than 50 papers in Nano Letters, ACS Nano, Optics Letters, Optics Express, Applied Physics Letters, etc., granted more than 10 US and China patents, given over 20 invited talks in international conferences including keynote presentation and plenary talks. Edited one book and authored two book chapters. His current research interests are optoelectronic integration, micro/nanophotonic devices.