Specific recording kinetics as a general property of unconventional photorefractive media.
We introduce a model for the kinetics of grating formation during holographic recording in optically excitable two-state systems. An unexpected characteristic time dependence of the diffraction efficiency is found. We show that it originates from a nonlinear transformation of the light interference pattern into a refractive-index profile. Our findings strongly resemble and explain by nature the experimental data of two-state systems in general, here represented by two examples: sodium nitroprusside and terbium gallium garnet.
Fally
Martin
M
Fachbereich Physik, Universität Osnabrück, Barbarastrasse 7, D-49069 Osnabrück, Germany and Institut für Experimentalphysik, Universität Wien, Boltzmanngasse 5, A-1090 Wien, Austria. Martin.Fally@univie.ac.at
Imlau
Mirco
M
Rupp
Romano A
RA
Ellabban
Mostafa A
MA
Woike
Theo
T