Spatiotemporal optical modulation instability of coherent light in noninstantaneous nonlinear media
Journal
Physical Review Letters
Journal Volume
88
Journal Issue
13
Date Issued
2002
Author(s)
Abstract
We report on the theoretical derivation and experimental observation of spatiotemporal modulation instability (MI) of a coherent light beam in noninstantaneous nonlinear media. We obtain analytically the MI growth rate as a function of the spatial and temporal frequencies of the perturbation and the material response time. In the experiment, we observe that the varying speed of the MI patterns increases with the decreased material response time. We also observe that increasing the material response time can arrest the MI, agreeing with our theoretical derivation.
SDGs
Type
journal article