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Design and modeling of long-range hybrid plasmonic waveguides
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Paper Abstract

In this paper, we describe the design and modeling of novel long-range hybrid plasmonic waveguides that consist of both plasmonic thin films and nano-scale structures of a high refractive index material (such as silicon), with a material of low refractive index (such as silicon di-oxide) lying in the region between the nano-scale structures and the plasmonic thin film. We have employed complex geometry of silicon nanostructures in the vicinity of a plasmonic thin film. The effective refractive index and the corresponding propagation length obtained for these plasmonic waveguides and hybrid plasmonic waveguides were obtained using a full-vector finite difference eigen mode solver. In our simulations, different structural parameters of the the hybrid plasmonic waveguides were varied, and the effect of these parameters ⎯ on the propagation length and effective mode area ⎯ was analyzed. We describe the design of novel hybrid plasmonic waveguides that have a propagation length greater than 1 mm and also have a low effective mode area. The waveguides being proposed by us can be fabricated with relative ease using the standard lithography processes.

Paper Details

Date Published: 26 April 2019
PDF: 6 pages
Proc. SPIE 11031, Integrated Optics: Design, Devices, Systems, and Applications V, 110311E (26 April 2019); doi: 10.1117/12.2524932
Show Author Affiliations
Rajib R. Ghosh, Indian Institute of Technology Delhi (India)
Abhijit Das, Indian Institute of Technology Delhi (India)
Arun Thomas, Indian Institute of Technology Delhi (India)
Mangesh Jaiswal, Indian Institute of Technology Delhi (India)
Anuj Dhawan, Indian Institute of Technology Delhi (India)


Published in SPIE Proceedings Vol. 11031:
Integrated Optics: Design, Devices, Systems, and Applications V
Pavel Cheben; Jiří Čtyroký; Iñigo Molina-Fernández, Editor(s)

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