| 초록 |
Since Photorefractive (PR) effect was first observed in a polymeric material, rapid progress has been achieved in the development and characterization of polymeric photorefractive materials. The dynamic process of photorefraction is very important in developing various real-time applications, such as image amplification, real-time interferometry, dynamic holography, and optical correlator, etc. The main factors affecting the dynamic process in a photorefractive material are generation, transportation, and trapping of charge. Here, we investigate relationship between traps and dark decay of PR grating in photorefractive materials. |
