3-D reconstruction of phase grating via digital micro-holography

摘要：

Digital micro-holography technique, a combination of digital holography with microscopy, can be used to measure and analyse the micro-structure and status information of samples when the digital holograM registered is reconstructed numerically by some numerical methods based on the principle of scalar diffraction or coherent image. By summarizing the development of digital micro-holography, Fresnel approximation reconstruction algorithm and twowavelength technique are introduced to study the three dimensional phase reconstruction of phase grating. Experimental results show good agreement with true parameters of phase grating. It also analyses the aberration of the image reconstructed by Fresnel approximation approach and two-wavelength technique.

关键词： 3D phase reconstruction Digital micro-holography phase grating

作者: Wenjing Zhou Yingjie Yu

作者单位: Dept. of Precision Mechanical Engineering, Shanghai university No. 149, Yanchang Rd., Shanghai, P.R. Dept. of Precision Mechanical Engineering,Shanghai university No. 149, Yanchang Rd., Shanghai, P.R.C

会议类型: 国际会议

会议名称: 第四届仪器科学与技术国际会议( 4th International Symposium on Instrumentation and Science and Tcchnology)

会议地点: 哈尔滨

会议语种:英文

页码: 1418-1423

在线出版日期: 2006-08-08（万方平台首次上网日期，不代表论文的发表时间）