Design of the experimental system of digital off-axis holography and analysis of zero-order image

被引：2

作者：

Lü, QN ^{[1
]}

Ge, BZ ^{[1
]}

Jiang, JF ^{[1
]}

Zhang, YM ^{[1
]}

机构：

[1] Tianjin Univ, Minist Educ, Key Lab Optelect Informat & Tech Sci, Coll Optoelect & Precis Instrument Engn, Tianjin 300072, Peoples R China

来源：

HOLOGRAPHY, DIFFRACTIVE OPTICS, AND APPLICATIONS II, PTS 1 AND 2 | 2005年 / 5636卷

关键词：

digital holography; holographic grating; zero-order image; NUMERICAL RECONSTRUCTION; INTERFEROMETRY; MICROSCOPY;

D O I：

10.1117/12.575302

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The simple hologram recording system of digital off-axis holography is designed. Holographic diffraction grating of low spatial frequency is introduced to digital holography, acting as a beam splitter, illuminated by the monochrome plane parallel light wave, and the three different plane parallel light waves, namely, the zero-order and the +/- 1order diffraction waves, are generated. An off-axis holography system is configurated between the +1/-1order diffraction waves and the zero-order wave. The theoretical analysis has been done in detail and the zero-order diffraction in the reconstructed image of digital off-axis holography is also analyzed theoretically. The experimental results are given. The feasibility of the experimental system presented in this paper was confirmed, simple in optical structure and easy in operation. In addition, the zero-order image can be eliminated by numerically processing the holograms of object with different recording parameters obtained by adjusting the reflecting mirror in the recording optical system to vary the incidence beam orientation in CCD to introduce a phase shift.

引用

页码：254 / 259

页数：6

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