微粒场全息术中记录介质的选择和处理研究

针对微粒场全息记录的特点,讨论了记录介质的分辨率和记录介质大小的选择;分析了全息记录介质的感光成像原理,对激光能量的高斯分布和曝光量对微粒场记录的影响进行了研究,给出了光束位置和曝光量对实验的影响结果,并对选用的3种记录介质在给定的处理工艺下的特性曲线进行了对比测试;选定的SY-2型记录介质,记录微粒场时适宜的曝光量为180μJ/cm2.

Study on the effects of selection and process of the holography film for in-line particles holography

In the view of the particles holography,the resolution and the size of holography film is discussed.The image principle of sensitization about holography film is analyzed.The effect of Gaussian beam distribution and the exposure amount on the recording and reconstruction is studied and the experimental results are obtained.The characteristic curves of three kinds of selected holography film are measured in the same process flow of bathe film.The most suitable exposure of SY-2 film is(180μJ/cm²) for in-line particles holography.