中国激光, 2013, 40 (10): 1009002, 网络出版: 2013-09-17   

白光菲涅耳非相干数字全息的记录、再现及实现 下载: 578次

Recording, Reconstruction and Realization of White-Light Fresnel Incoherent Digital Holography
作者单位
1 华南师范大学广东省微纳光子功能材料与器件重点实验室, 广东 广州 510006
2 深圳信息职业技术学院, 广东 深圳 518172
摘要
在分析白光菲涅耳非相干数字全息记录和再现的基础上,详细讨论了再现像分辨率与记录参数的关系。分别对空间光调制器(SLM)上加载一个平面波和一个球面波相位,以及加载两个球面波相位情况下,实现白光菲涅耳非相干数字全息记录和再现进行了模拟和实验研究,定量分析了成像质量与记录参数的关系。研究结果表明,基于SLM的白光菲涅耳非相干数字全息能够以单通道、无运动的方式实现三维物体的快速记录和再现。理论上,无论SLM上加载一个平面波和一个球面波相位,还是加载两个球面波相位的白光菲涅耳非相干数字全息系统,其再现像分辨率都可以达到相同的最大分辨率。但在实验研究中,由于对光源的带宽和CCD尺寸的要求不同,加载两个球面波相位时对记录条件的要求比加载一个平面波和一个球面波相位的情况大大降低。在相同的实验条件下,前者再现像的分辨率远远大于后者。
Abstract
Based on the analysis of the fundamental principle of the recording and reconstruction of white-light fresnel incoherent digital holography, the relationship between the reconstructed image resolution and recording parameters is discussed in detail. With two different types of phases loaded on the spatial light modulator (SLM), numerical simulation and experimental research of white-light fresnel incoherent digital holography are implemented respectively to analyse the relationship between image quality and recording parameters quantitatively. Results show that white-light fresnel incoherent digital holography based on SLM can realize the recording and reconstruction of three-dimensional object rapidly in a single channel and motionless way. Theoretically, a high quality reconstructed image with the same maximum resolution can be obtained, whichever phase loaded on SLM it is, a plane wave and a spherical wave or two spherical waves. However, due to the different requirements of the bandwidth of the light source and CCD size in the experimental study, the recording condition of loaded phase of two spherical waves is greatly reduced than that of loaded phase of a plane wave and a spherical wave. Under the same experimental conditions, the former reconstructed image resolution is much higher than the latter.

刘英臣, 范金坪, 曾凡创, 吕晓旭, 钟丽云. 白光菲涅耳非相干数字全息的记录、再现及实现[J]. 中国激光, 2013, 40(10): 1009002. Liu Yingchen, Fan Jinping, Zeng Fanchuang, Lü Xiaoxu, Zhong Liyun. Recording, Reconstruction and Realization of White-Light Fresnel Incoherent Digital Holography[J]. Chinese Journal of Lasers, 2013, 40(10): 1009002.

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