Theoretical proposal for the dynamical control of the nonlinear optical response frequency

TL;DR

This paper presents a theoretical method to control the frequency of nonlinear optical responses in media using nonlinear resonance and resonance overlapping, with potential experimental realization in specific crystals and laser setups.

Contribution

It introduces a novel theoretical approach for dynamical control of nonlinear optical response frequency through resonance phenomena, with practical experimental suggestions.

Findings

Controlled frequency switching via parameter tuning.

Maximum frequency scales with noise intensity.

Proposed experimental implementation in LiF, NaCl crystals.

Abstract

We propose theoretically a method for the control of the frequency of the nonlinear optical response of a model nonlinear medium driven by an electric field and suggest an experimental realization on the basis of isotropic LiF, or NaCl crystals and pulsed Nd glass laser. The theoretical background of the proposed optical control is the nonlinear resonance and the resonance overlapping which is typical for nonlinear systems. It is shown that by a proper choice of the parameters of the applied pulses a diffusive growth of the oscillation amplitude can be achieved resulting in a controlled switching of the system's frequency. The maximum frequency of the nonlinear response is identified to be proportional to the intensity of the applied noise. An experimental suggestion for particular materials is proposed.