In this paper, we report a pulsed digital micro-holography system for recording ultra-fast process of the order of femto-second.

采用脉冲数字全息技术实现对飞秒级超快动态过程的数字显微全息记录。

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Meanwhile, the experiment result shows that the laser holography system is a powerful tool for diagnosing dynamic particle field, with high resolution and large depth of field.

试验表明脉冲激光全息系统具有很好的诊断动态颗粒场的能力，是一种适合于深入研究颗粒运动细节的有效手段。

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Base on this principle, a three-beam holography system is set up. The diffraction efficiency and the quality of the diffraction image are shown to be greatly improved by the auxiliary violet light.

根据此原理，建立了三光束全息光存储系统，在红光记录全息图的同时加入辅助紫光，可以使全息图衍射效率及衍射像的像质得到提高。

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Holography and optical correlation are both inherently analogue processes that can degrade the clean 1s and 0s required in a digital system.

ECONOMIST: Optical recognition