论文部分内容阅读
一、引言 全息摄影术,是拍摄目标及观察目标的象的一种新方法,该方法是基于光的干涉现象,由于这一现象,在感光层上聚焦的并非图象本身,而是由目标散射的光波和某一附加波即所谓参考波相互作用而构成的图案。这样一个记录在感光层上的图案,也就是经过相应处理后的感光层,称为全息图片。欲从全息图片得到目标的象,则用与参考光束同样的光束对全息图进行照明。在这种情况下,这一光束称为还原光束;而这个过程本身则称为图象的还原或重现。
I. INTRODUCTION Holography is a new method of photographing targets and observing images of targets based on the phenomenon of interference of light. Due to this phenomenon, the focus on the photosensitive layer is not the image itself but the target Scattered light wave and an additional wave that is the so-called reference wave interaction between the composition of the pattern. Such a record in the photosensitive layer on the pattern, that is, after the appropriate treatment of the photosensitive layer, known as the hologram. To obtain a target image from a hologram, the hologram is illuminated with the same beam as the reference beam. In this case, this beam is called a reducing beam; and the process itself is called image reduction or reproduction.