[8月16日]：Photonics beyond diffraction limit：Plasmon waveguide, cavities and integrated laser circuits
报告人：张翔 教授/美国工程院院士，台湾中央研究院院士 (伯克利加州大学 )
Photonics beyond diffraction limit： Plasmon waveguide, cavities and integrated laser circuits
I will discuss recent development in scaling down of 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.
• Rupert F. Oulton, Volker J. Sorger, Thomas Zentgraf, Ren-Min Ma, Christopher Gladden, Lun Dai, Guy Bartal & Xiang Zhang, "Plasmon lasers at deep subwavelength scale", Nature ,Vol. 461, 629. 2009
• Xiaobo Yin, Ziliang Ye, Junsuk Rho, Yuan Wang, Xiang Zhang, "Photonic Spin Hall Effect at Metasurfaces", Science, 339, 1405-1407. 2013
• Xiaodong Yang, Jie Yao, Junsuk Rho, Xiaobo Yin, and Xiang Zhang,"Experimental realization of three-dimensional indefinite cavities at the nanoscale with anomalous scaling laws", Nature Photonics, 6, 450–454. 2012
• Volker J. Sorger, Ziliang Ye, Rupert F. Oulton, Yuan Wang, Guy Bartal, Xiaobo Yin, and Xiang Zhang, "Experimental demonstration of low-loss optical waveguiding at deep sub-wavelength scales", Nature Communications, Vol. 2, 331. 2011
• Ren-Min Ma, Xiaobo Yin, Rupert F. Oulton, Volker J. Sorger, and Xiang Zhang, "Multiplexed and Electrically Modulated Plasmon Laser Circuit", Nano Letters, 12 (10), pp 5396-5402. 2012
Xiang Zhang is the Ernest S. Kuh Chaired Professor at the University of California, Berkeley and the Director of the NSF Nano-scale Science and Engineering Center (SINAM). He is a member of the US National Academy of Engineering (NAE), Academia Sinica (Republic of China) and fellow of APS, OSA, AAAS and SPIE. His group’s research in optical metamaterials was selected by Times Magazine as “Top 10 Scientific Discoveries in 2008”. Xiang Zhang was a recipient of the NSF CAREER Award, Rohsenow Lecturer at MIT, William C. Reynolds Lecturer at Stanford University, Fred Kavli Distinguished Lecturer at Materials Research Society (MRS), SME Dell K. Allen Outstanding Young Engineer Award and ONR Young Investigator Award. He received his BS/MS in physics in Nanjing University, China, and Ph.D from UC Berkeley in 1996 and was on faculty at Pennsylvania State University and UCLA prior returning Berkeley in 2004.