Dynamic incoherent-to-coherent image conversion is proposed, which is based on the effects of electrocontrolled two-beam coupling in SBN:Ce and image spatial modulation of coupling gain. Either negative or positive coherent replica is obtained by altering the electric field. Analysis of the performance is made by coupled-wave theory, which gives the optimum experimental parameters for a grey-level image conversion.

Photorefractive spatial light modulation by electrocontrolled beam coupling in SBN:Ce crystals

P Mormile;G Pierattini;S De Nicola
1989

Abstract

Dynamic incoherent-to-coherent image conversion is proposed, which is based on the effects of electrocontrolled two-beam coupling in SBN:Ce and image spatial modulation of coupling gain. Either negative or positive coherent replica is obtained by altering the electric field. Analysis of the performance is made by coupled-wave theory, which gives the optimum experimental parameters for a grey-level image conversion.
1989
Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" - ISASI
photorefractive
nonlinear-optics
electro-modulation
SBN
holography
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/450761
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