Electric field in volume hologram made with DCG

Dahe Liu; Jun Zheng; Zhicheng Ye; Xiaodong Wang; Yuhong You; Xun Wang

doi:10.1117/12.481542

30 August 2002 Electric field in volume hologram made with DCG

Dahe Liu, Jun Zheng, Zhicheng Ye, Xiaodong Wang, Yuhong You, Xun Wang

Proceedings Volume 4924, Holography, Diffractive Optics, and Applications; (2002) https://doi.org/10.1117/12.481542
Event: Photonics Asia, 2002, Shanghai, China

Abstract

After exposure and processing, the Cr6+ ion in dichromated gelatin (DCG) is reduced to Cr3+. The unexposed Cr6+ is washed out by water and , the gelatin cross linked with Cr3+. Since the density distribution of Cr3+ is proportional to the exposure of light, distribution of Cr3 will be sinusoidal. Meanwhile, the ions or molecules of other materials are distributed uniformly in a certain range around Cr3+. Therefore, the distributions of positive and negative charges will be unequal, and an electric field will be induced inside the medium of volume hologram in macro-scale. The intensity of such electric field is calculated basing on this mechanism. and it is found to be considerably strong.

Citation Download Citation

Dahe Liu, Jun Zheng, Zhicheng Ye, Xiaodong Wang, Yuhong You, and Xun Wang "Electric field in volume hologram made with DCG", Proc. SPIE 4924, Holography, Diffractive Optics, and Applications, (30 August 2002); https://doi.org/10.1117/12.481542

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