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光导热塑片——一种新型的全息记录介质,因为它具有很多优点而受到了大家的重视。但是在无损探伤,应力分析等工作中需要记录介质在原位进行二次曝光。因此,光塑片能否进行二次曝光就成了大家所关心的问题。Bellamy等人首次用光塑片实现了二次曝光。他利用光塑片记录了第一张全息图后,不经消像,直接加载进行二次曝光而得到二次曝光干涉图。但并未作任何解释。
Photoconductive thermoformed film - a new type of holographic recording medium, has gained the attention of many people because of its many advantages. However, non-destructive testing, stress analysis and other work requires recording media in situ double exposure. Therefore, the plastic sheet can be double exposure has become the concern of everyone. For the first time, Bellamy et al. Achieved double exposure with light plastic film. He recorded the first hologram with a photo-plastic film, and did not eliminate the image, and directly loaded the second exposure to obtain the second-exposure interference pattern. But did not make any explanation.