Two Step on-axis Digital Holography Using Dual-channel Mach-Zehnder Interferometer and Matched Filter Algorithm

被引：18
|
作者：
Lee, Hyung-Chul [1 ]
Kim, Soo-Hyun [1 ]
Kim, Dae-Suk [2 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mech Engn, Taejon 305701, South Korea
[2] Chonbuk Natl Univ, Div Mech Syst Engn, Jeonju 561756, South Korea
来源：
JOURNAL OF THE OPTICAL SOCIETY OF KOREA | 2010年 / 14卷 / 04期
关键词：
Digital holography; Mach-Zehnder interferometer; Matched filter; 2 INTENSITY MEASUREMENTS; IN-LINE HOLOGRAMS; SINGLE-EXPOSURE; NUMERICAL RECONSTRUCTION; REFERENCE WAVE;
D O I：
10.3807/JOSK.2010.14.4.363
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new two step on-axis digital holography (DH) is proposed without any assumptions, phase shifting, or complicated optical components. A dual-channel Mach-Zehnder interferometer was employed. Using that setup, the object field can be reconstructed requiring only two step measurements. To eliminate position difference between two charge-coupled device (CCD) cameras, a matched filter algorithm was used. Experimental results are compared to those of the traditional phase shifting technique. The proposed approach can also be applied to single-exposure on-axis DH for real time measurement.
引用
收藏
页码：363 / 367
页数：5
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