Two-beam coupling photorefractive spatial light modulation with reversible contrast

Marrakchi, Abdellatif
August 1988
Applied Physics Letters;8/22/1988, Vol. 53 Issue 8, p634
Academic Journal
The intricate polarization properties of Doppler-enhanced self-diffraction in linearly birefringent and optically active materials, such as bismuth silicon oxide crystals, are utilized to achieve real-time photorefractive spatial light modulation with contrast selection capability. The contrast reversal is explained in terms of the spatial modulation of the birefringence caused by an incoherent erasure beam.


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