Title :
Silver nanoshells plasmonically controlled random lasing without dielectric spacer
Author :
Ning Zhou ; Meng Yuan ; Dongsheng Li ; Deren Yang
Author_Institution :
Dept. of Mater. Sci. & Eng., Zhejiang Univ., Hangzhou, China
Abstract :
Random lasing properties of dye solutions suspended with silver nanoshells are investigated. Unlike the case of metal nanoparticles with a dielectric layer to suppress high absorption rate which is seriously detrimental to lasing resonance, Ag nanoshells with cavity mode can concentrate electric field around the void centre and consequently lead to low loss. This is supported by the finite-different time-domain method. The results suggest that Ag nanoshells nanostructures present a new approach towards well-controlled random lasers.
Keywords :
electric fields; finite difference time-domain analysis; nanophotonics; plasmonics; silver; Ag; dielectric layer; dielectric spacer; dye solutions; electric field; finite-different time-domain method; nanoparticles; nanoshells plasmonically controlled random lasing; Cavity resonators; Fluorescence; Lasers; Metals; Nanoparticles; Plasmons; Surface treatment; Rhodamine 6G; cavity mode; random lasing; silver nanoshell;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193653
