全息术及其应用

全息术是一种用相干光干涉得到物体全部信息的2步成像技术。全息术的发展大约可分同轴全息术、离轴全息术、白光再现全息术、白光全息术等4个阶段。全息术具有三维、不可撕毁、再现像的缩放、信息容量大等特点。全息术是一门正在蓬勃发展的光学分支，近年来已渗透到社会生活的各个领域并被广泛地应用于近代科学研究和工业生产中，特别是在现代测试、生物工程、医学、艺术、商业、保安及现代存储技术等方面已显示出特殊的优势。随着全息技术的快速发展，全息技术的产品正越来越多地走向市场、应用于现代生活中。

Development and application of holography

The holography is a two-step imaging technology which obtains the whole information from an object with the coherent light interference.The development of holography can be roughly divided into four stages: coaxial holography,off-axial holography,white light reconstructing holography,white light holography.The holography has many features,such as three dimension,never tearing,image reconstruction compression and enlargement,and information mass capacity and so on.The holography is an active branch of optics.In recent years,it has penetrated into every field of social life,and been widely applied to the modern scientific research and industrial production.Especially,it has some special superiority in modern test technology,bio-engineering,medicine,art,commerce,security as well as modern memory technology.With fast development of the holography,more and more holographic products have already been stepping into the modern life.