Title :
Optical Waves Transmission Raised by Localized Surface Plasmons
Author :
Chen, S.C. ; Chiu, K.P. ; Tsai, D.P.
Author_Institution :
Far East Coll., Tainan
Abstract :
A corrugated metal thin film can enhance the emission of light-emitting devices by the assistance of radiative surface plasmons. But, away from the resonant frequency, the metal thin film has a shielding effect on transmission. We replace the corrugated thin film by a discontinuous metal nanostructure, the isolated metal nanohemispheres can induce localized surface plasmons. The angular dependence and two different wavelengths are studied. The reflection on dielectric layers may be reduced and the transmission could be raised by the localized surface plasmons even the resonance condition is not fulfilled. The scattered Ey component is sensitive to the tilt angle, it might be useful to some novel applications.
Keywords :
dielectric thin films; light reflection; light scattering; metallic thin films; nanostructured materials; surface plasmons; corrugated metal thin film; dielectric layer reflection; discontinuous metal nanostructure; isolated metal nanohemispheres; light-emitting devices; localized surface plasmons; optical wave transmission; radiative surface plasmons; scattered component; shielding effect; Corrugated surfaces; Dielectric thin films; Optical films; Optical scattering; Optical sensors; Optical surface waves; Plasmons; Stimulated emission; Surface waves; Thin film devices;
Conference_Titel :
Numerical Simulation of Optoelectronic Devices, 2007. NUSOD '07. International Conference on
Conference_Location :
Newark, DE
Print_ISBN :
978-1-4244-1431-4
DOI :
10.1109/NUSOD.2007.4349008
