报告题目：Photonics beyond diffraction limit:Plasmon waveguide, cavities and integrated laser circuits

报告人:张翔（Prof. Xiang Zhang）University of California at Berkeley

 Abstract：I will discuss recent development in scaling down photonics. First I will present theoretical and experimental investigation of passive low loss waveguide using hybrid plasmon design. We propose a new optical cavity design approach using indefinite medium that has a drastically different scaling law than conventional microcavities, and discuss its experimental demonstrations. Finally we will show an active plasmonic laser circuit that integrated with 5 tiny cavities that multiplexed into a single waveguide-an effort towards integrated photonics at nano-scale.

Brief Biography：Prof. Xiang Zhang is the inaugural Ernest S. Kuh Endowed Chaired Professor at UC Berkeley and the Director of NSF Nano-scale Science and Engineering Center (NSEC). He is also a Faculty Scientist at Lawrence Berkeley National Laboratory (LBNL). Prof. Zhang is an elected member of National Academy of Engineering (NAE) and Fellow of four scientific societies: APS (The American Physical Society), OSA (The Optical Society of America), AAAS (The American Association for the Advancement of Science), and SPIE (The International Society of Optical Engineering). Prof. Zhang received Ph.D from UC Berkeley (1996). He was an assistant professor at Pennsylvania State University (1996-1999), and associate professor and full professor at UCLA (1999-2004) prior joined Berkeley faculty in 2004. Prof. Zhang’s current research focused on nano-scale science and technology, materials physics, photonics and bio-technologies. He has published more than 230 technical papers including publications in Science and Nature. He has given over 220 Keynote, Plenary and Invited talks at international conferences and institutions. He served as a Co-Chair of NSF Nanoscale Science and Engineering Annual Grantee Conferences in 2004 and 2005, Chair of Technical Program of IEEE 2nd International Conference on Micro and Nano Engineered and Molecular Systems in 2007, and current Chair of Academic Advisory Board for The Research Center for Applied Science (RCAS), Academia Sinica, Taiwan, ROC. In 2008, Professor Zhang’s research has been selected by Time Magazine as one of “Top Ten Scientific Discoveries of the Year” and “50 Best Inventions of the Year”, Discover Magazine’s “Top 100 Science Stories” in 2007, and R&D Magazine’s top 25 the Most Innovative Products of 2006. His research was frequently featured by international media including BBC, CNN, ABC, New York Times, and Wall Street Journal. Professor Zhang is a recipient of NSF CAREER Award (1997); SME Dell K. Allen Outstanding Young Manufacturing Engineer Award (1998) and ONR Young Investigator Award (1999). He was awarded Chancellor’s Professorship by UC Berkeley (2004-2009), “Distinguished Lecturer” by University of Texas at Austin in 2004 and SEMETECH in 2005, respectively, and “Rohsenow Lecturer”at MIT in 2009. In 2010, he was elected to the membership of United States National Academy of Engineering. In 2011, he was awarded Fred Kavli Distinguished Lectureship by Materials Research Society (MRS), Miller Professorship by UC Berkeley, and Distinguished Visiting Scientist (DVS) by the University of Toronto.