Digital pre-filtering approach to improve optically reconstructed wavefields in opto-electronic holography

被引：18

作者：

Agour, Mostafa ^{[1
,2
]}

Falldorf, Claas ^{[1
]}

von Kopylow, Christoph ^{[1
]}

机构：

[1] Bremer Inst Angew Strahltech, Dept Opt Metrol, D-28359 Bremen, Germany

[2] S Valley Univ, Aswan Fac Sci, Dept Phys, Aswan 81528, Egypt

来源：

JOURNAL OF OPTICS | 2010年 / 12卷 / 05期

关键词：

computer holography; Fourier optics and optical signal processing; spatial light modulator; SPATIAL LIGHT MODULATORS; COMPUTER-GENERATED HOLOGRAMS; PHASE; INTERFEROMETER;

D O I：

10.1088/2040-8978/12/5/055401

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a method that significantly improves the quality of the optically reconstructed complex amplitude from a spatial light modulator (SLM). This method is based on applying a digital pre-filtering of the SLM's encoded distribution to compensate the signal distortion caused by the SLM's finite pixel size. In this approach the complex transmittance is changed in such a way that it compensates the modulation in the Fourier plane. The basic principle of this technique and its experimental verification are described.

引用

页数：7

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