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Trapping of Micro Particles in Nanoplasmonic Optical Lattice

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Published on: September 5, 2017

Self-trapping threshold in disordered nonlinear photonic lattices.

U Naether¹, M Heinrich, Y Lahini

¹Departamento de Física and MSI-Nucleus on Advanced Optics, Center for Optics and Photonics (CEFOP), Facultad de Ciencias, Universidad de Chile, Santiago, Chile. unaether@u.uchile.cl

|May 2, 2013

Summary

Coupling disorder in optical waveguide arrays lowers the threshold power for soliton localization. This finding impacts understanding of self-trapping dynamics in disordered nonlinear systems.

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Area of Science:

Nonlinear optics
Condensed matter physics
Photonics

Background:

Nonlinear optical waveguide arrays exhibit self-trapping dynamics.
Disorder can significantly alter the behavior of wave propagation in such systems.

Purpose of the Study:

To investigate the influence of coupling disorder on self-trapping dynamics.
To determine the effect of disorder on the threshold power for soliton localization.

Main Methods:

Numerical simulations of nonlinear optical waveguide arrays.
Experimental investigations of self-trapping dynamics.
Analysis of propagation constants and threshold power.

Main Results:

Identified lower and upper bounds for the effective average propagation constant.
Defined a generalized threshold power for soliton localization.
Observed a decrease in the threshold power in the presence of coupling disorder compared to ordered systems.

Conclusions:

Coupling disorder reduces the power required for soliton localization in 1D optical waveguide arrays.
The findings provide insights into the role of disorder in nonlinear wave phenomena.