Manipulation of light-matter interaction in gold nanostructures

• 作 者: 徐毅 李锦祥 戴峭峰 铁绍龙 兰胜
• 机 构: 暨南大学信息科学技术学院电子工程系,广州 510632 华南师范大学信息光电子科技学院,广州 51
• 出 处: 中国物理学会2016年秋季会议
• 发表日期: 2016年5期
• 关键词: plasmonic coupling gold nanostructure two-photon absorption single-photon absorp

　　We consider the effects of plasmonic coupling on the two-photon absorption of complex plasmonic systems composed of coupled gold nanoparticles.By utilizing two representative examples,we reveal that the strongly localized modes induced by plasmonic coupling play a crucial role in determining the two-photon absorption of the plasmonic systems.For a gold nanodisk hexamer,we show by numerical simulation that the near field distribution of hotspots can be tailored by changing the excitation polarizations.