重铬酸盐──三醋纤全息记录介质敏化液的最佳配制

A New Holographic Recording Material──The Optimum Preparation of Sensitization Solution of Dichromated Cellulose Triacetate

本文通过实验研究了重铬酸盐──三醋酸纤维素酯全息记录新材料，敏化液中铬盐的用量，溶液的ｐＨ值及两种电子供体ＤＭＦ、ＤＭＳＯ对全息介质光敏性和全息图实时衍射效率的影响，实验结果表明，在敏化液中选择１５％的重铬酸铵，ｐＨ值取６．５以及电子供体的引入不仅提高了材料的感光记录速度，而且大大提高了全息图的实时衍射效率．

Dichromated cellulose triacetate (DC-CTA)is a new holographic recording material. In this paper, an experimental study to ascertain the influence of the pH value, concentration of dichromate in the sensitization, and two electron doners, namely, N, N-dimethglformaide (DMF) and dimethglsoulfoxide (DMSO), on the real time diffraction efficiency (RIDE) of DC-CTA holograms are carried out. The experimental results is shown belown: If the concentration of ammonium dichromate is chosen at 15% and PH equal to 6. 5, the presence of electron donors not only impreves the sensitivity to light, but also enhances the real time diffraction efficiency greatly.