Sefl Assembly in Plasmonics
- Hybrid Colloidal Plasmonic-Photonic Crystals
时间：2014.3.28 上午10点
地点：教三440
Abstract
An important aim of contemporary nanophotonics is to manipulate light by using nanometre length scale structures made of dielectric, metallic or hybrid materials. Such plasmonic or photonic nanostructures, if produced over large area, can be widely used for many real life photonic and optoelectronic applications, e.g. photovoltaics, metamaterials, waveguiding, and biosensing. Unfortunately, up to now nanostructures with precise geometry are mostly fabricated using electron beam or focused ion beam lithography, which, nevertheless, are also characterized by high cost, complicated, and slow manufacturing processes and limited sample area. In contrast, the technique of natural self-assembly is an attractive route to creating large-area nanostructured arrays efficiently and cheaply.
In this talk, I am going to demonstrate how the self-assembly technique based on colloidal nanospheres can be used to fabricate hybrid colloidal plasmonic-photonic crystals, followed by the introduction of the unique optical properties of such nanostructures. Specifically, I will demonstrate the fluorescence reshaping effect in a 2-dimensional hybrid crystal, the interplay between surface and volume diffraction resonances in a 3-dimensional hybrid crystal and the enhancement of light harvesting efficiency by a hybrid heterocrystal.
Personal Summary
A physicist with 6 years research experience in nanophotonics, optics and semi-conductors. Published papers on top academic journals, such as Nano Letters, Advanced Functional Materials and Physical Reviews B; worked and studied at famous laboratories in many countries.
