Transmission of electromagnetic waves through nonlinear optical layers

TL;DR

This paper theoretically investigates how electromagnetic waves transmit through nonlinear optical layers with Kerr nonlinearity, focusing on soliton excitation conditions and their dependence on incident wave power.

Contribution

It provides a theoretical analysis of soliton excitation thresholds and transmission characteristics in nonlinear optical layers with Kerr effects.

Findings

Soliton excitations occur only above a specific nonlinearity power threshold.

A position-independent soliton electric field amplitude is found at the threshold.

Transmission coefficient depends on the nonlinearity power of the incident wave.

Abstract

The excitation of soliton states in optical layers exhibiting Kerr nonlinearities is theoretically investigated. The optical transmission coefficient is obtained as a function of the nonlinearity power of an incident monochromatic electromagnetic wave polarized in the transverse electric configuration. In materials exhibiting a defocusing nonlinearity, soliton excitations are not observed if the nonlinearity power associated with the incident electromagnetic wave is below a well-defined value. At such a limiting value of the nonlinearity power, a soliton excitation with an electric-field amplitude independent of the position is found within the nonlinear layer, regardless of the incident-wave frequency value.