用光刻胶作记录材料的全息图象拍摄

光刻胶常用作模压全息母版拍摄的记录材料。本文在叙述了它本身和模压工艺的特点后,指出要拍摄出质量好的光刻胶母版应当注意到的问题。诸如拍摄参数的选择应同时考虑到衍射效率和信噪比,照明的均匀性问题,必须用逆共轭光再现的问题,以及消偏振,相干长度,外界振动对拍摄的影响问题。最后分析说明拍摄的主要矛盾在于,只有用相干性好的大功率激光束,才能提高拍摄的信噪比,获得高质量的全息图片。本文是在大量的实验和检测的基础上写成的.

How to take holograms by use of photoresist as recording materials

The photoresist is used as recording materials to take the master of embossing hologram.This paper gives some illustration about embossing holograms and points out how to take good photoresist master including the choice of taking parameters with high diffraction efficiency and signal to noise ratio, the well distribution of illumination light, the reconstruction of inverse conjugate light, eliminating polarization, coherent length and the influence of external vibration.This paper also presents the higher power laser with good coherence is the key to gain good quality hologram.This paper is written by a lot of experiments and inspecting.