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8月21日学术报告通知

来源： 发布时间：2013-08-19【字体：大 中 小】

　　报告题目：“Nanomechanical optical fiber, and inorganic glass based optical devices” 

　　报告人：廉正刚博士（英国南安普顿大学） 

　　时间：2013年8月21日上午9：30 

　　地点：1号楼一楼第五会议室 

　　  

　　Abstract: 

　　  

　　Optical fibers are an excellent transmission medium for light, but generally after fabrication their optical properties cannot be easily modified. This talk explores the concept of nanomechanical optical fibers where, in addition to the fiber transmission capability, the internal core structure of the fiber can also be controlled through sub-micron mechanical movements. Optical switching of light from one core to another is achieved through moving one core by just 8 nm. 

　　  

　　The physical properties of chalcogenide glasses such as high refractive index, high nonlinearity make them ideal for incorporation into planar optics, optical fibers and other devices. This talk will also describe some fabrication works about chalcogenide glass based optical devices. 

　　  

　　  

　　Biography: 

　　

　　  

　　Zhenggang Lian obtained his BEng in Electronic and Electrical Engineering from the University of Nottingham (United Kingdom) in 2006 with first class honour degree. He studied his Ph.D in the area of fabrication of chalcogenide glass based optical devices, in the same university, in 2010. He then joined the Optoelectronics Research Centre (ORC) at the University of Southampton as a postdoctoral research fellow, and working in an EPSRC funded project: “Transforming the Internet Infrastructure – The Photonics Hyperhighway”. 

　　  

　　His current research interests include: fabrication of Microstructured optical fibers, for applications in telecommunication and environmental sensing. Also, characterize optical property of inorganic glasses and fabricate optical fibers from variety of glass materials; improve and optimize existing fabrication techniques. He has demonstrated the nanomechanical optical fiber, which has the form of dual suspended cores. The fiber does not just transmit light like usual optical fibers; heir internal core structure is designed to be dynamic and capable of precise mechanical motion. This function brings some interesting applications, such as optical switching / buffering; also this fiber can be used in sensors. He has demonstrated mono-mode planar waveguide using ‘hot embossing’ technique and all solid microstructured optical fiber in chalcogenide glass.  

　　  

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