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Figure of merit for Kerr nonlinear plasmonic waveguides
- Source :
- Laser & Photonics Reviews. 10:639-646
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- Plasmonic waveguides are promising in many applications because of their subwavelength field confinement, which can strongly enhance light-matter interactions. Nevertheless, how to efficiently evaluate their Kerr nonlinear performance is still an open question because of the presence of relatively large linear losses. Here a simple and versatile figure of merit (FOM) is proposed for Kerr nonlinear waveguides with linear losses. To derive the FOM, a generalized full-vectorial nonlinear Schrodinger equation governing nonlinear pulse propagation in a lossy waveguide is developed, and an approximate analytic solution of the degenerate four wave mixing conversion efficiency is derived and validated. The effectiveness of the FOM is verified with an all-plasmonic and a hybrid-plasmonic waveguide configuration. Rigorous results show that the optimal waveguide length for the highest conversion efficiency is ln 3 times the attenuation length. At this length, the upper limits of the conversion efficiency and the nonlinear phase shift are determined by the FOM. These results provide fundamental theory and useful guidance in exploring plasmonic waveguides for nonlinear optical applications.
- Subjects :
- Field (physics)
Physics::Optics
02 engineering and technology
Lossy compression
01 natural sciences
law.invention
010309 optics
symbols.namesake
Optics
law
0103 physical sciences
Figure of merit
Nonlinear Sciences::Pattern Formation and Solitons
Nonlinear Schrödinger equation
Physics
business.industry
Energy conversion efficiency
Attenuation length
021001 nanoscience & nanotechnology
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Nonlinear system
symbols
0210 nano-technology
business
Waveguide
Subjects
Details
- ISSN :
- 18638899 and 18638880
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Laser & Photonics Reviews
- Accession number :
- edsair.doi...........060f4f40f273ea10e85c233ad9d47c91