期刊
OPTICS COMMUNICATIONS
卷 284, 期 12, 页码 2839-2842出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2011.02.052
关键词
Integrated optics; Plasmon waveguide; Guided waves; Semi-elliptical
类别
资金
- Fundamental Research Funds for the Central Universities [Izujbky-2010-88]
- Lanzhou University [LZUJC200909]
Semi-elliptical dielectric-loaded surface plasmon-polariton waveguide (DLSPPW) is proposed. The mode effective index, field confinement, and propagation length of the fundamental mode supported by it are calculated at the telecom wavelength lambda = 1.55 mu m for different dimensions of a polymer ridge (with the refractive index of 1.535) placed on a gold film surface. The waveguide structure is found to exhibit 23% increase of the propagation length while showing similar confinement as compared to conventional rectangular DLSPPW when ridge thickness t < 450 nm (ridge width w = 600 nm) and ridge width w < 320 nm (ridge thickness t=600 nm). (C) 2011 Elsevier B.V. All rights reserved.
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