Experimental analysis of holographic photography

This experimental report is mainly written neatly, just write more, because there is really no data to process.

The experiment of laser holography requires very strict environment, not only dark and dreary conditions, but also factors such as sound and vibration. In the experiment, it is necessary not only to assemble the instrument accurately, but also to cooperate with the members tacitly during the exposure operation, otherwise the final imaging effect will be affected. The final result of the experiment is not ideal. Although some images of objects can be seen through holograms, they are not obvious. This is caused by accidental errors in the experiment, such as the measurement and judgment of optical path difference, the setting of light intensity ratio and the influence of exposure on the experiment, which affects the final experimental effect.