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[主讲人: 徐红星] [时间: 2010-12-06 14:00:00]
主讲人：徐红星 研究员（Laboratory of Nanoscale Physics and Devices, Institute of Physics, Chinese Academy of Science, Beijing, China）
报告摘要：Photon, as the information carrier, has great advantages, for instance, large band width, high density, high speed, low damping. Half of the Nobel Prize for Physics in 2009 is given to Professor Charles Kao for his groundbreaking achievements concerning the transmission of light in fibers for optical communication. However, diffraction limit is an obstacle for the miniaturization of optical devices and chips. In recent years, surface plasmons (SPs), collective oscillations of free electron gas at the interface of metal and dielectric, attract the researchers’ attention since SPs can break the diffraction limit of light. The manipulation of light at the nanometer scale brings the promise for the miniaturization of optical elements and chips. And the research on surface plasmons has become a rapidly growing field, i.e. Plasmonics.
Here we report our recent studies about propagation properties of plasmons on metal nanostructures and possible for device applications, including remote-excitation surface-enhanced Raman scattering (SERS) at the single molecule level with nanowire-nanoparticle coupled system; plasmon and exciton interaction and the energy transfer; the directional light emission from the end of silver nanowires; the polarization issue of plasmon propagating, and those nanodevice applications of plasmonic router and multiplexer.
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