报告题目：Nanostructures and Interfaces investigated in Frequency and Time Domain
报 告 人：Prof. Arnulf Materny （Jacobs University Bremen, Germany）
报告时间：2015年11月26日(星期四)，下午15:00-16:30
报告地点：威廉希尔六层学术报告厅（致知楼3623-3624）
报告摘要：
It is well known that a drastic increase of the Raman scattering intensity can be observed when the molecules are adsorbed to surfaces of nano-structured coin-metal surfaces (e.g. silver or gold). Different mechanisms contribute to the surface-enhancement effect. However, surface-enhanced Raman scattering (SERS) is still not completely understood. While an enhancement of the electromagnetic wave of excitation and signal light can be nicely explained by plasmonic resonances and a “lightning-rod effect”, the coupling of the electronic systems of the metal substrate and the molecules also plays a role. In the presentation, “chemical” or “electronic enhancement” effect by performing experiments in the frequency and (femtosecond) time domain will be accessed, and corresponding techniques will be introduced.
报告人简介：
Arnulf Materny, 德国不莱梅Jacobs大学化学物理研究所教授。长期从事线性与非线性光谱、特别是拉曼技术的研究工作，同时在飞秒时间分辨泵浦-探测和四波混频光谱等领域也有重要的研究。已在国际顶级期刊发表高质量研究论文190余篇。其所领导的研究小组因其对拉曼光谱研究的重要贡献，在国际上享有很高的知名度。现为英国工程与自然研究理事会(EPSRC)成员，德国本生物理化学学会(German Bunsen Society for Physical Chemistry)讲师，拉曼光谱杂志委员会委员，亚洲化学快报委员会委员，EduWorld顾问团成员。
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威廉希尔
2015年11月24日
