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首先在这里简单地介绍一下全息术的基础知识,较详细的介绍可以参考1968年版的年鉴和基姆勒与勒斯的专题论文。全息术的原理在于,把被观察物体发出的波前的二个主要测量参数—幅度、位相记录下来(偏振态是次要的)。需要重新再现这个波前时,用与参考波相同的光波照明照片。上述的干涉图就象衍射光栅一样起衍射作用。衍射出来的恰是原来的物体波。所有的物体,甚至是进行光学检验的物体,如图象、测定尺度或者干涉测量都只能用再现物体波前
First of all, here simply introduce the basics of holography, a more detailed introduction can refer to the 1968 edition of the Yearbook and Keimler and Leys monographs. The principle of holography consists in recording the two major measurement parameters of the wavefront emitted by the observed object, the amplitude and the phase (the polarization state is secondary). When it is necessary to reproduce the wavefront again, the image is illuminated with the same light wave as the reference wave. The above interferogram behaves as a diffraction grating. Diffraction is precisely the original object wave. All objects, even those subject to optical inspection, such as images, measurement scales or interference measurements, can only be reproduced using the wavefront