Photon-gated intensity effect upon holographic storage for thin layers of methyl orange dye doped polyvinyl alcohol

摘要

The photon-gated intensity effect upon holographic storage for thin layers of polyvinyl alcohol (PVA) matrices doped methyl orange dyes (MO) is investigated. The dynamic curves for grating growing and decay are given for different gating intensity. The time that grating gets to saturation becomes short The maximum diffraction efficiency of the grating gets little with the rise of gating light intensity. The proper intensity Ar-ion laser can erase grating. The erasing velocity is proportional to erasing light intensity. The modulation transfer function (MTF) is measured for writing beams having different polarization states.