基于圆偏振光干涉的相移数字全息术理论与实验研究  

Theoretical and Experimental Study on Digital Phase-Shifting Holography Based on Circular Polarized Light Interference

作　　者：朱竹青[1] 李杨[1] 冯少彤[1] 王晓雷[2] 贡丽萍 聂守平[1] 

机构地区：[1]南京师范大学物理与科学技术学院江苏省光电技术重点实验室,江苏南京210023 [2]南开大学现代光学研究所光学信息技术科学教育部重点实验室,天津300071

出　　处：《中国激光》2014年第4期220-225,共6页Chinese Journal of Lasers

基　　金：国家自然科学基金(61275133);江苏省光电技术重点实验室开放基金(1640703061)

摘　　要：提出一种基于圆偏振光干涉的相移数字全息术,该技术利用1/4波片产生左旋圆偏振的参考光和右旋圆偏振的物光,通过精确旋转放置在CCD前的偏振片,依次改变物光与参考光间的相位差,获得四幅相移数字全息图。数值模拟分析和光学实验结果表明该技术能够有效地去除数字全息图再现像中的零级和共轭像,再现图像质量好。Phase-shifting digital holography based on circular polarized light interference is proposed. It generates the object beam with right-rotated circular polarization and the reference beam with left-rotated circular polarization by quarter wave plate, successively changing the phase difference between the object beam and the reference beam by accurately rotating the polarizer located in front of the CCD and acquiring four digital holograms with corresponding phase changes. Numerical simulation and analysis and optical experimental results demonstrate that the method presented above can effectively remove the zero-order and conjugated images and has good-quality reconstructed image.

关 键 词：全息 数字全息 圆偏振光干涉 四步相移术 偏振态测量仪 

分 类 号：O438.1[机械工程—光学工程]