please forward to your groups Center for Excitonics Seminar Series Announcement Tuesday, February 8, 2011 3:00 PM RLE Conference Room: 36-428 "Self-Assembled Colloidal Plasmonic Systems" Jonathan Fan, Harvard University Abstract The self-assembly of colloids is an alternative to top-down processing that enables the fabrication of nanostructures. I will show that self-assembled clusters of metal-dielectric spheres are the basis for nanophotonic structures. By tailoring the number and position of spheres in close-packed clusters, plasmon modes exhibiting strong magnetic and Fano-like resonances emerge. The use of identical spheres simplifies cluster assembly and facilitates the fabrication of highly symmetric structures. These types of chemically synthesized nanoparticle clusters can be generalized to other two- and three-dimensional structures and can serve as building blocks for new metamaterials. bio Jonathan Fan is currently a Postdoctoral Research Associate in the Capasso Group at Harvard University. He received his PhD in Applied Physics from the Capasso Group in 2010, where he was an NSF Graduate Fellow doing plasmonics research in colloidal systems and quantum cascade laser waveguide design. He received his BS with highest honor in Electrical Engineering from Princeton in 2004. He has authored and co-authored 18 papers. Light refreshments will be served The Center for Excitonics is an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science and Office of Basic