Bimetallic Nanostructures and Their Plasmonic Properties
소속 :
연사 : Jianfang Wang(The Chinese University of Hong Kong)
일시 : 2013-09-25 17:00 ~
장소 : 12동 상산수리과학관 101호
일 시 : 2013년 9월 25일, 오후 5:00
장 소 : 12동 상산수리과학관 101호
-Abstract-
Plasmonic metal nanocrystals have received much attention owing to their attractive plasmonic features. Their plasmon resonance wavelengths can be synthetically varied. Their absorption/scattering cross sections normalized against their physical sizes are larger than those of atoms, ions, molecules, and semiconductor nanocrystals. Upon resonant excitation, they can concentrate light into near-field regions close to the metal surface. Moreover, the local density of photonic states around metal nanocrystals are largely enhanced around their plasmon wavelengths. These plasmonic features have enabled a number of applications with metal nanocrystals in a wide range of areas, such as imaging, sensing, nanomedicine, enhancement of linear and nonlinear optical signals, optics and optoelectronics. Bimetallic nanostructures combine together two different metals. They can provide properties and functions that are impossible from monometallic nanocrystals. In this presentation, I will focus on our recent studies of bimetallic nanostructures, including their preparation, plasmonic properties, and applications
장 소 : 12동 상산수리과학관 101호
-Abstract-
Plasmonic metal nanocrystals have received much attention owing to their attractive plasmonic features. Their plasmon resonance wavelengths can be synthetically varied. Their absorption/scattering cross sections normalized against their physical sizes are larger than those of atoms, ions, molecules, and semiconductor nanocrystals. Upon resonant excitation, they can concentrate light into near-field regions close to the metal surface. Moreover, the local density of photonic states around metal nanocrystals are largely enhanced around their plasmon wavelengths. These plasmonic features have enabled a number of applications with metal nanocrystals in a wide range of areas, such as imaging, sensing, nanomedicine, enhancement of linear and nonlinear optical signals, optics and optoelectronics. Bimetallic nanostructures combine together two different metals. They can provide properties and functions that are impossible from monometallic nanocrystals. In this presentation, I will focus on our recent studies of bimetallic nanostructures, including their preparation, plasmonic properties, and applications
