DocumentCode :
1452296
Title :
Hybrid Coupling Between Long-Range Surface Plasmon Polariton Mode and Dielectric Waveguide Mode
Author :
Liu, Fang ; Li, Yunxiang ; Wan, Ruiyuan ; Huang, Yidong ; Feng, Xue ; Zhang, Wei
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Volume :
29
Issue :
9
fYear :
2011
fDate :
5/1/2011 12:00:00 AM
Firstpage :
1265
Lastpage :
1273
Abstract :
In this paper, the hybrid coupling between long-range surface plasmon polariton (LRSPP) waveguide mode and dielectric waveguide mode has been studied theoretically and experimentally in detail by considering its dependence on the structure parameters and wavelength. It is demonstrated that extremely high coupling efficiency (>;99%) has been achieved for TM polarization, while no coupling could happen for TE polarization between these two kinds of waveguides. Based on this hybrid coupler, a polarization splitter with pure TM-mode output from one arm and TE-mode output from the other arm with high TE/TM extinction ratio has been realized. Additionally, this kind of coupling between different waveguides is very significant for providing an effective approach to connect the LRSPP-based devices with the conventional dielectric devices.
Keywords :
coupled mode analysis; dielectric waveguides; polaritons; surface plasmons; LRSPP-based devices; TE polarization; TM polarization; dielectric waveguide mode; hybrid coupling; long-range surface plasmon polariton mode; polarization splitter; structure parameters; Couplers; Couplings; Dielectrics; Gold; Optical waveguides; Silicon compounds; Strips; Hybrid coupler; polarization splitter; surface plasmon polariton (SPP);
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/JLT.2011.2115992
Filename :
5714706
Link To Document :
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