Metallic nanoparticle's localized surface plasmon resonance effect and its application in transparent projection display

Frequency-selective scattering of light can be achieved by metallic nanoparticle’s localized surface plasmon resonance (LSPR). And this property may find application in transparent projection display: ideally, specially designed metallic nanoparticles dispersed in a transparent matrix only selectively scatter red, green and blue light and transmit the visible light of other colors. In this thesis, general properties of LSPR are first reviewed. Then, selective scattering achieved by spherical core-shell structure of Ag@TiO2 (core@shell) is presented. Since metallic nanoparticle’s size is comparable to free electrons’ mean free path in bulk metal, size effect of metallic nanoparticle on optical scattering and absorption is investigated. After that, the possibility to achieve ultra-sharp scattering peaks (i.e., strong frequency-selectivity of scattering) by combining metallic nanoparticles with gain materials is discussed. Finally, selective scattering properties of silver and gold nanocubes placed on dielectric substrate is studied. Future works include finding ways to experimentally realize metallic nanoparticles with ultra-sharp scattering peaks, and lowering its cost.Doctor of Philosoph