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2020年学术报告(六):等离激元纳米结构中的声学振动及其强耦合

       

报告人:汪国平 教授 (深圳大学)

报告时间:202064 14:30 17:00

报告形式:Tencent会议(会议号:317 832 200

会议直播:https://meeting.tencent.com/s/gz4upbTNQlLD

报告摘要:Vibrating plasmonic nanoparticles generate two types of acoustic waves. One is the localized acoustic vibrations of the metal nanoparticle itself. The other is propagating picosecond acoustic waves in the surrounding medium. In this talk, we will discuss these two types of acoustic waves generated from single plasmonic resonators. The high frequency acoustic vibrations inherent to these plasmonic resonators enabled us to study the solvent dynamics. We’ve discovered the outgoing picosecond acoustic waves damp the mechanical vibrations of plasmonic resonators. Blocking the phonon decay pathway, we improved the vibrational quality factors of metallic resonators by an order of magnitude which enabled us t