Single shot high resolution digital holography

被引：69

作者：

Khare, Kedar ^{[1
]}

Ali, P. T. Samsheer ^{[1
]}

Joseph, Joby ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 03期

关键词：

ZERO-ORDER; IMAGE; SUPPRESSION; RECONSTRUCTION; ELIMINATION; CONJUGATE; TERM;

D O I：

10.1364/OE.21.002581

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a novel computational method for high resolution image recovery from a single digital hologram frame. The complex object field is obtained from the recorded hologram by solving a constrained optimization problem. This approach which is unlike the physical hologram replay process is shown to provide high quality image recovery even when the dc and the cross terms in the hologram overlap in the Fourier domain. Experimental results are shown for a Fresnel zone hologram of a resolution chart, intentionally recorded with a small off-axis reference beam angle. Excellent image recovery is observed without the presence of dc or twin image terms and with minimal speckle noise. (C) 2013 Optical Society of America

引用

页码：2581 / 2591

页数：11

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