Title :
Tunable polarizability and self-trapping of light in colloidal suspensions of gold nanoparticles
Author :
Fardad, Shima ; Bezryadina, Anna ; Peng Zhang ; Zhigang Chen ; Christodoulides, Demetrios N.
Author_Institution :
CREOL/Coll. of Opt., Univ. of Central Florida, Orlando, FL, USA
Abstract :
Aqueous suspensions containing pure gold nanoparticles and silica-gold core-shells are shown to exhibit different polarizibilities, thus allowing self-trapping of long needles of light. The different nonlinear mechanisms behind these processes are investigated.
Keywords :
colloids; gold; light polarisation; nanoparticles; optical self-focusing; optical tuning; silicon compounds; suspensions; SiO2-Au; aqueous suspensions; colloidal suspensions; gold nanoparticles; light self-trapping; silica-gold core-shells; tunable polarizability; Educational institutions; Gold; Laser beams; Nanoparticles; Nonlinear optics; Optical beams; Suspensions;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
