Organic Photoelectric Materials and Applications

      PR effect refers to a spatial modulation of refractive index due to the light-induced redistribution of charge. Potential applications: high-density data storage, reversible optical holography, noise-free optical image amplification, phase conjugation and information processing, etc.

The process of formation of photorefractive grating.

Effective EO coefficient measurement  system

Two-beam coupling and four-wave mixing experimental system