Abstract
We present in this paper a wave-coupled model (WCM) to describe the effective nonlinear (NL) optical response of transparent materials illuminated by strong light beams in conditions such that stimulated light scattering is relevant. At low intensities, the WCM indicates that the NL scattering behaves similarly to a third- and fifth-order polarization susceptibility. However, at sufficiently high intensities, NL light scattering will lead to highly nonperturbative effective NL refraction and NL absorption coefficients. This is an important remark, given that attempts to explain NL scattering contributions as a perturbative NL response from data obtained at low intensities will become discrepant from the data obtained at high intensities. As an application of the model, we show that the existing divergent interpretations of the carbon disulfide (CS2) NL response in the picosecond and femtosecond regimes by several authors are consistent with the WCM, which indicates a direction for future experiments that may clarify the present controversy.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.