Abstract
We derive a kinetic differential equation for the formation of space-charge field (SCF) in photorefractive polymers and give its general solution, which is based on Schildkraut’s work. It is found that SCF consists of two exponential decay waves and there are two decay factors corresponding to two response time constants of SCF. Changing the parameters in the solution, we can understand the formation of SCF for different cases. In this article, we discuss a case of no traps and find that both static and transient actions of SCF are determined by the grating wave vector k and total incident intensity Ii.
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