Abstract
The photorefractive(PR)properties of two kinds of the double-layered PR polymeric device are presented. As one of the application utilizing the merit of large gain for the multi-layered PR device, the function as a self-pumped phase conjugation mirror(SPPCM)is discussed. Theses devices show a promise for the optical logic device, since they strongly exhibit the incident beam polarization state dependence of the phase conjugation reflectivity.
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