DocumentCode :
1764450
Title :
Tunable Slow Light Based on Plasmon-Induced Transparency in Dual-Stub-Coupled Waveguide
Author :
Guoxi Wang ; Wenfu Zhang ; Yongkang Gong ; Jian Liang
Author_Institution :
State Key Lab. of Transient Opt. & Photonics, Xi´an Inst. of Opt. & Precision Mech., Xi´an, China
Volume :
27
Issue :
1
fYear :
2015
fDate :
Jan.1, 1 2015
Firstpage :
89
Lastpage :
92
Abstract :
We investigate the plasmon-induced transparency (PIT) effect in dual-stub-coupled metal-insulator-metal waveguide. The transmission line theory is employed to analyze the relationship between the transmission properties and geometrical parameters. It is found that by incorporating tunable refractive index materials with the proposed structure, a tunable PIT and slow light effect can be obtained in a constant stub separation design. The theoretical results show that a shift of 70 THz in the central wavelengths of transparency window can be obtained when the refractive index of the dielectric varies. In addition, the group index can be tuned from 24 to 36, which provides an effective method to adjust the slow light properties in the proposed waveguide. This letter opens up the possibility for the realization of tunable slow light devices in highly integrated optical circuits.
Keywords :
MIM devices; light transmission; optical design techniques; optical tuning; optical waveguide theory; refractive index; slow light; transparency; constant stub separation design; dielectric varies; dual-stub-coupled metal-insulator-metal waveguide; geometrical parameters; group index; integrated optical circuits; plasmon-induced transparency; transmission line theory; transmission properties; tunable refractive index materials; tunable slow light devices; Dielectrics; Dispersion; Optical waveguides; Plasmons; Refractive index; Slow light; Slow light; plasmon-induced transparency (PIT); slow light; surface plasmons;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2014.2362293
Filename :
6918431
Link To Document :
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