Nonlinear scattering and trapping by local photonic potentials.

Area of Science:

• Nonlinear optics
• Photonics
• Condensed matter physics

Background:

• Kerr media exhibit intensity-dependent refractive indices, leading to nonlinear optical phenomena.
• Photonic structures can localize or guide light, interacting with nonlinear media.

Purpose of the Study:

• To experimentally investigate nonlinear light scattering by local photonic structures in continuous Kerr media.
• To demonstrate and understand nonlinear trapping and resonant transmission phenomena.
• To develop and verify a physical model for these interactions.

Main Methods:

• Experimental setup involving laser propagation through engineered photonic structures in a nonlinear medium.
• Optical characterization of scattered light and transmitted intensity.
• Numerical simulations to model light propagation and validate experimental observations.

Main Results:

• Demonstrated nonlinear trapping of light within guiding photonic structures.
• Observed resonant transmission of light through antiguiding structures.
• Experimental results align with the developed intuitive physical picture and simulation predictions.

Conclusions:

• Local photonic structures significantly influence nonlinear light scattering in Kerr media.
• Nonlinear trapping and resonant transmission are key phenomena controllable by structure design.
• The validated physical model provides a framework for understanding light-structure interactions in nonlinear optical systems.