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学术报告第202161期

发布时间:2021-11-09 编辑:张惠兰 来源:科研

报告题目:Hybrid nanophotonics and applications

报 告 人:孙雅丽 博士后(俄罗斯圣彼得堡国立信息技术机械与光学大学)

报告时间:2021119 1530

报告地点:南一楼中311

主持人:刘文中

 

报告摘要:

The metal nanoparticles are proven to be efficient systems for light controlling considering the ability to modify the near-field distribution. On the other hand, low-loss high-index dielectric nanoparticles with inherent magnetic and electric Mie resonances offer a great opportunity for light controlling via designing their scattering properties. Recently, experiments have demonstrated the opportunity to simultaneously obtain high localization of the near field and magnetic response in hybrid metal/dielectric nanostructures. Here linear and nonlinear properties of hybrid dimer composed of gold nanodisk located on the top of a truncated silicon cone are theoretically and experimentally investigated. By applying femtosecond laser to reshape the gold component of the hybrid nanostructure, tunable, reconfigurable, and enhanced optical properties are observed. Such hybrid nanostructure can be applied for unidirectional scattering, photoluminescence enhancement, optical sensing, and other applications. At last, novel fabrication methods such as focused ion/electron beam and green printing technology as well as the optical properties of the designed nanostructures are introduced.

 

报告人简介:

YAli Sun earned her Ph. D. from department of Physics, ITMO University, Russia. Her research direction is optical properties of resonant metal-dielectric nanoantennas and their applications. Now , she is a postdoc in department of Physics, ITMO University, Russia.her research direction is Green printed hybrid nanostructures and applications.

Her research Interests includes :Hybrid plasmonic/dielectric nanophotonics; nonlinear; tunable; structure coloring; chirality; sensing. Her research grant is: BRICS STI Framework Programme (Russia-China-India),funding period: 01.01.2020 31.12.2022.she is the main applicant and responsible researcher.

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