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本文提供了重铬酸明胶（ＤＣＧ）的一种简化处理步骤，最高衍射效率和透明度均达９７％，测量和分析了处理后ＤＣＧ光栅的衍射特性，讨论了高质量ＤＣＧ全息元件的应用。
In this paper, we provide a simplified procedure of dichromated gelatin (DCG) with the highest diffraction efficiency and transparency up to 97%. The diffraction characteristics of the processed DCG gratings were measured and analyzed. The application of high quality DCG holographic elements was discussed.