1 research outputs found
Localized Surface Plasmon Resonance of Metallic Nanoparticles--Optical Property Characterization for Rational Applications
在光的激发下金属纳米结构中的自由电子能够发生群体性的振荡,进而产生表面等离激元(SPP)。发生等离激元共振时,金属纳米结构会将光束缚在表面,并在表面产生极强的电场增强。表面等离激元有两种类型:一类具有传播的特点,其表面等离激元能够在表面传播,称之为propagatingSPP;另一类不具有传播性,共振局域在一个很小的金属结构中,称之为localizedSPP,即局域表面等离激元共振(LSPR)。金属纳米颗粒就具有很强的表面等离激元共振的(LSPR)性质,使其对光产生增强的吸收和增强的散射,并表现出相关的热、光电场增强和热电子等效应。近年,随着纳米科技的发展,金属纳米粒子的LSPR效应已经成为一...The collective oscillation of free electrons in metal nanostructures excited with light is called surface plasmon polaritons (SPP). The light will be confined to a small area on the surface under the resonance condition (SPR), thus a giant enhancement in the electric field will be produced. There are two kinds of surface plasmon polaritons (SPP): one is propagating plasmon polaritons (PSPP), which...学位:理学博士院系专业:化学化工学院_物理化学(含化学物理)学号:2052010015366