Low-power plasmon-soliton in realistic nonlinear planar structures

Area of Science:

• Photonics and Optics
• Materials Science
• Nonlinear Optics

Background:

• Nonlinear waves in layered dielectric/metal structures are crucial for advanced optical devices.
• Understanding light propagation requires accurate vector models for complex configurations.
• Soliton waves with plasmonic properties offer unique light-confining capabilities.

Purpose of the Study:

• To develop and apply vector models for studying nonlinear wave propagation in specific layered structures.
• To design realistic structures supporting low-power soliton waves with plasmon tails.
• To investigate the field confinement and plasmonic field extension in these novel configurations.

Main Methods:

• Development of vector models for one- and two-dimensional light propagation analysis.
• Computation of nonlinear dispersion relations and field profiles.
• Estimation of optical losses within the designed structures.

Main Results:

• Successfully designed structures supporting soliton waves with a plasmon tail at peak powers below 1 GW/cm(2).
• Demonstrated nonlinearity-induced field confinement in both transverse directions.
• Observed a significant plasmonic field component extending into the air.

Conclusions:

• The developed models enable the design of practical optical structures for nonlinear wave phenomena.
• The proposed structures show potential for observing soliton states in chalcogenide waveguides.
• These findings pave the way for novel applications in integrated optics and plasmonics.