Diffraction from volume reflection gratings written in bulk photorefractive lithium niobate is
modeled for the case of longitudinally varying index modulation depths. Numerical solutions …

This paper investigates the possibilities of complex nonlinear dynamic signal generation
using a simple photorefractive two-wave mixing system without any feedback using …

The Lorentz oscillator model is applied to a strongly coupled hybridized light-matter state. It
is noted that the real part of the index undergoes rapid change in the area of the so-called …